280800000020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{1163}}^1$

素因数の和:1458

約数の個数: 192

約数和(自身を含む): 646260249600

約数和(自身を除く): 365460249580

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 89, 101, 158, 170, 178, 202, 316, 340, 356, 395, 404, 445, 505, 790, 890, 1010, 1163, 1343, 1513, 1580, 1717, 1780, 2020, 2326, 2686, 3026, 3434, 4652, 5372, 5815, 6052, 6715, 6868, 7031, 7565, 7979, 8585, 8989, 11630, 13430, 14062, 15130, 15958, 17170, 17978, 19771, 23260, 26860, 28124, 30260, 31916, 34340, 35155, 35956, 39542, 39895, 44945, 70310, 79084, 79790, 89890, 91877, 98855, 103507, 117463, 119527, 135643, 140620, 152813, 159580, 179780, 183754, 197710, 207014, 234926, 239054, 271286, 305626, 367508, 395420, 414028, 459385, 469852, 478108, 517535, 542572, 587315, 597635, 611252, 678215, 710131, 764065, 918770, 1035070, 1174630, 1195270, 1356430, 1420262, 1528130, 1561909, 1759619, 1837540, 1996871, 2070140, 2349260, 2390540, 2712860, 2840524, 3056260, 3123818, 3519238, 3550655, 3993742, 6247636, 7038476, 7101310, 7809545, 7987484, 8177053, 8798095, 9279577, 9984355, 10454207, 12072227, 14202620, 15619090, 16354106, 17596190, 18559154, 19968710, 20908414, 24144454, 31238180, 32708212, 35192380, 37118308, 39937420, 40885265, 41816828, 46397885, 48288908, 52271035, 60361135, 81770530, 92795770, 104542070, 120722270, 139009901, 157752809, 163541060, 177721519, 185591540, 209084140, 241444540, 278019802, 315505618, 355443038, 556039604, 631011236, 695049505, 710886076, 788764045, 825882353, 888607595, 1390099010, 1577528090, 1651764706, 1777215190, 2780198020, 3155056180, 3303529412, 3554430380, 4129411765, 8258823530, 14040000001, 16517647060, 28080000002, 56160000004, 70200000005, 140400000010, 280800000020]

約数ペア:

[(1, 280800000020), (2, 140400000010), (4, 70200000005), (5, 56160000004), (10, 28080000002), (17, 16517647060), (20, 14040000001), (34, 8258823530), (68, 4129411765), (79, 3554430380), (85, 3303529412), (89, 3155056180), (101, 2780198020), (158, 1777215190), (170, 1651764706), (178, 1577528090), (202, 1390099010), (316, 888607595), (340, 825882353), (356, 788764045), (395, 710886076), (404, 695049505), (445, 631011236), (505, 556039604), (790, 355443038), (890, 315505618), (1010, 278019802), (1163, 241444540), (1343, 209084140), (1513, 185591540), (1580, 177721519), (1717, 163541060), (1780, 157752809), (2020, 139009901), (2326, 120722270), (2686, 104542070), (3026, 92795770), (3434, 81770530), (4652, 60361135), (5372, 52271035), (5815, 48288908), (6052, 46397885), (6715, 41816828), (6868, 40885265), (7031, 39937420), (7565, 37118308), (7979, 35192380), (8585, 32708212), (8989, 31238180), (11630, 24144454), (13430, 20908414), (14062, 19968710), (15130, 18559154), (15958, 17596190), (17170, 16354106), (17978, 15619090), (19771, 14202620), (23260, 12072227), (26860, 10454207), (28124, 9984355), (30260, 9279577), (31916, 8798095), (34340, 8177053), (35155, 7987484), (35956, 7809545), (39542, 7101310), (39895, 7038476), (44945, 6247636), (70310, 3993742), (79084, 3550655), (79790, 3519238), (89890, 3123818), (91877, 3056260), (98855, 2840524), (103507, 2712860), (117463, 2390540), (119527, 2349260), (135643, 2070140), (140620, 1996871), (152813, 1837540), (159580, 1759619), (179780, 1561909), (183754, 1528130), (197710, 1420262), (207014, 1356430), (234926, 1195270), (239054, 1174630), (271286, 1035070), (305626, 918770), (367508, 764065), (395420, 710131), (414028, 678215), (459385, 611252), (469852, 597635), (478108, 587315), (517535, 542572)]