263294780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 693987840

約数和(自身を除く): 430693060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 103, 124, 133, 140, 155, 190, 206, 217, 266, 310, 380, 412, 434, 515, 532, 589, 620, 665, 721, 868, 961, 1030, 1085, 1178, 1330, 1442, 1922, 1957, 2060, 2170, 2356, 2660, 2884, 2945, 3193, 3605, 3844, 3914, 4123, 4340, 4805, 5890, 6386, 6727, 7210, 7828, 8246, 9610, 9785, 11780, 12772, 13454, 13699, 14420, 15965, 16492, 18259, 19220, 19570, 20615, 22351, 26908, 27398, 31930, 33635, 36518, 39140, 41230, 44702, 54796, 60667, 63860, 67270, 68495, 73036, 82460, 89404, 91295, 98983, 111755, 121334, 127813, 134540, 136990, 182590, 197966, 223510, 242668, 255626, 273980, 303335, 365180, 395932, 424669, 447020, 494915, 511252, 606670, 639065, 692881, 849338, 989830, 1213340, 1278130, 1385762, 1698676, 1880677, 1979660, 2123345, 2556260, 2771524, 3464405, 3761354, 4246690, 6928810, 7522708, 8493380, 9403385, 13164739, 13857620, 18806770, 26329478, 37613540, 52658956, 65823695, 131647390, 263294780]

約数ペア:

[(1, 263294780), (2, 131647390), (4, 65823695), (5, 52658956), (7, 37613540), (10, 26329478), (14, 18806770), (19, 13857620), (20, 13164739), (28, 9403385), (31, 8493380), (35, 7522708), (38, 6928810), (62, 4246690), (70, 3761354), (76, 3464405), (95, 2771524), (103, 2556260), (124, 2123345), (133, 1979660), (140, 1880677), (155, 1698676), (190, 1385762), (206, 1278130), (217, 1213340), (266, 989830), (310, 849338), (380, 692881), (412, 639065), (434, 606670), (515, 511252), (532, 494915), (589, 447020), (620, 424669), (665, 395932), (721, 365180), (868, 303335), (961, 273980), (1030, 255626), (1085, 242668), (1178, 223510), (1330, 197966), (1442, 182590), (1922, 136990), (1957, 134540), (2060, 127813), (2170, 121334), (2356, 111755), (2660, 98983), (2884, 91295), (2945, 89404), (3193, 82460), (3605, 73036), (3844, 68495), (3914, 67270), (4123, 63860), (4340, 60667), (4805, 54796), (5890, 44702), (6386, 41230), (6727, 39140), (7210, 36518), (7828, 33635), (8246, 31930), (9610, 27398), (9785, 26908), (11780, 22351), (12772, 20615), (13454, 19570), (13699, 19220), (14420, 18259), (15965, 16492)]