128436840

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{809}}^1$

素因数の和:846

約数の個数: 240

約数和(自身を含む): 502791300

約数和(自身を除く): 374354460

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 735, 756, 809, 810, 840, 882, 945, 980, 1080, 1134, 1176, 1260, 1323, 1470, 1512, 1618, 1620, 1764, 1890, 1960, 2205, 2268, 2427, 2520, 2646, 2835, 2940, 3236, 3240, 3528, 3780, 3969, 4045, 4410, 4536, 4854, 5292, 5663, 5670, 5880, 6472, 6615, 7281, 7560, 7938, 8090, 8820, 9708, 10584, 11326, 11340, 12135, 13230, 14562, 15876, 16180, 16989, 17640, 19416, 19845, 21843, 22652, 22680, 24270, 26460, 28315, 29124, 31752, 32360, 33978, 36405, 39641, 39690, 43686, 45304, 48540, 50967, 52920, 56630, 58248, 65529, 67956, 72810, 79282, 79380, 84945, 87372, 97080, 101934, 109215, 113260, 118923, 131058, 135912, 145620, 152901, 158564, 158760, 169890, 174744, 198205, 203868, 218430, 226520, 237846, 254835, 262116, 291240, 305802, 317128, 327645, 339780, 356769, 396410, 407736, 436860, 458703, 475692, 509670, 524232, 594615, 611604, 655290, 679560, 713538, 764505, 792820, 873720, 917406, 951384, 1019340, 1070307, 1189230, 1223208, 1310580, 1427076, 1529010, 1585640, 1783845, 1834812, 2038680, 2140614, 2293515, 2378460, 2621160, 2854152, 3058020, 3210921, 3567690, 3669624, 4281228, 4587030, 4756920, 5351535, 6116040, 6421842, 7135380, 8562456, 9174060, 10703070, 12843684, 14270760, 16054605, 18348120, 21406140, 25687368, 32109210, 42812280, 64218420, 128436840]

約数ペア:

[(1, 128436840), (2, 64218420), (3, 42812280), (4, 32109210), (5, 25687368), (6, 21406140), (7, 18348120), (8, 16054605), (9, 14270760), (10, 12843684), (12, 10703070), (14, 9174060), (15, 8562456), (18, 7135380), (20, 6421842), (21, 6116040), (24, 5351535), (27, 4756920), (28, 4587030), (30, 4281228), (35, 3669624), (36, 3567690), (40, 3210921), (42, 3058020), (45, 2854152), (49, 2621160), (54, 2378460), (56, 2293515), (60, 2140614), (63, 2038680), (70, 1834812), (72, 1783845), (81, 1585640), (84, 1529010), (90, 1427076), (98, 1310580), (105, 1223208), (108, 1189230), (120, 1070307), (126, 1019340), (135, 951384), (140, 917406), (147, 873720), (162, 792820), (168, 764505), (180, 713538), (189, 679560), (196, 655290), (210, 611604), (216, 594615), (245, 524232), (252, 509670), (270, 475692), (280, 458703), (294, 436860), (315, 407736), (324, 396410), (360, 356769), (378, 339780), (392, 327645), (405, 317128), (420, 305802), (441, 291240), (490, 262116), (504, 254835), (540, 237846), (567, 226520), (588, 218430), (630, 203868), (648, 198205), (735, 174744), (756, 169890), (809, 158760), (810, 158564), (840, 152901), (882, 145620), (945, 135912), (980, 131058), (1080, 118923), (1134, 113260), (1176, 109215), (1260, 101934), (1323, 97080), (1470, 87372), (1512, 84945), (1618, 79380), (1620, 79282), (1764, 72810), (1890, 67956), (1960, 65529), (2205, 58248), (2268, 56630), (2427, 52920), (2520, 50967), (2646, 48540), (2835, 45304), (2940, 43686), (3236, 39690), (3240, 39641), (3528, 36405), (3780, 33978), (3969, 32360), (4045, 31752), (4410, 29124), (4536, 28315), (4854, 26460), (5292, 24270), (5663, 22680), (5670, 22652), (5880, 21843), (6472, 19845), (6615, 19416), (7281, 17640), (7560, 16989), (7938, 16180), (8090, 15876), (8820, 14562), (9708, 13230), (10584, 12135), (11326, 11340)]