1285659480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21557}}^1$

素因数の和:21649

約数の個数: 128

約数和(自身を含む): 4470266880

約数和(自身を除く): 3184607400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4970, 5964, 7455, 8520, 9940, 11928, 14910, 19880, 21557, 29820, 43114, 59640, 64671, 86228, 107785, 129342, 150899, 172456, 215570, 258684, 301798, 323355, 431140, 452697, 517368, 603596, 646710, 754495, 862280, 905394, 1207192, 1293420, 1508990, 1530547, 1810788, 2263485, 2586840, 3017980, 3061094, 3621576, 4526970, 4591641, 6035960, 6122188, 7652735, 9053940, 9183282, 10713829, 12244376, 15305470, 18107880, 18366564, 21427658, 22958205, 30610940, 32141487, 36733128, 42855316, 45916410, 53569145, 61221880, 64282974, 85710632, 91832820, 107138290, 128565948, 160707435, 183665640, 214276580, 257131896, 321414870, 428553160, 642829740, 1285659480]

約数ペア:

[(1, 1285659480), (2, 642829740), (3, 428553160), (4, 321414870), (5, 257131896), (6, 214276580), (7, 183665640), (8, 160707435), (10, 128565948), (12, 107138290), (14, 91832820), (15, 85710632), (20, 64282974), (21, 61221880), (24, 53569145), (28, 45916410), (30, 42855316), (35, 36733128), (40, 32141487), (42, 30610940), (56, 22958205), (60, 21427658), (70, 18366564), (71, 18107880), (84, 15305470), (105, 12244376), (120, 10713829), (140, 9183282), (142, 9053940), (168, 7652735), (210, 6122188), (213, 6035960), (280, 4591641), (284, 4526970), (355, 3621576), (420, 3061094), (426, 3017980), (497, 2586840), (568, 2263485), (710, 1810788), (840, 1530547), (852, 1508990), (994, 1293420), (1065, 1207192), (1420, 905394), (1491, 862280), (1704, 754495), (1988, 646710), (2130, 603596), (2485, 517368), (2840, 452697), (2982, 431140), (3976, 323355), (4260, 301798), (4970, 258684), (5964, 215570), (7455, 172456), (8520, 150899), (9940, 129342), (11928, 107785), (14910, 86228), (19880, 64671), (21557, 59640), (29820, 43114)]