256393410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4943}}^1$

素因数の和:4992

約数の個数: 128

約数和(自身を含む): 797368320

約数和(自身を除く): 540974910

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 26, 30, 35, 38, 39, 42, 57, 65, 70, 78, 91, 95, 105, 114, 130, 133, 182, 190, 195, 210, 247, 266, 273, 285, 390, 399, 455, 494, 546, 570, 665, 741, 798, 910, 1235, 1330, 1365, 1482, 1729, 1995, 2470, 2730, 3458, 3705, 3990, 4943, 5187, 7410, 8645, 9886, 10374, 14829, 17290, 24715, 25935, 29658, 34601, 49430, 51870, 64259, 69202, 74145, 93917, 103803, 128518, 148290, 173005, 187834, 192777, 207606, 281751, 321295, 346010, 385554, 449813, 469585, 519015, 563502, 642590, 657419, 899626, 939170, 963885, 1038030, 1220921, 1314838, 1349439, 1408755, 1927770, 1972257, 2249065, 2441842, 2698878, 2817510, 3287095, 3662763, 3944514, 4498130, 6104605, 6574190, 6747195, 7325526, 8546447, 9861285, 12209210, 13494390, 17092894, 18313815, 19722570, 25639341, 36627630, 42732235, 51278682, 85464470, 128196705, 256393410]

約数ペア:

[(1, 256393410), (2, 128196705), (3, 85464470), (5, 51278682), (6, 42732235), (7, 36627630), (10, 25639341), (13, 19722570), (14, 18313815), (15, 17092894), (19, 13494390), (21, 12209210), (26, 9861285), (30, 8546447), (35, 7325526), (38, 6747195), (39, 6574190), (42, 6104605), (57, 4498130), (65, 3944514), (70, 3662763), (78, 3287095), (91, 2817510), (95, 2698878), (105, 2441842), (114, 2249065), (130, 1972257), (133, 1927770), (182, 1408755), (190, 1349439), (195, 1314838), (210, 1220921), (247, 1038030), (266, 963885), (273, 939170), (285, 899626), (390, 657419), (399, 642590), (455, 563502), (494, 519015), (546, 469585), (570, 449813), (665, 385554), (741, 346010), (798, 321295), (910, 281751), (1235, 207606), (1330, 192777), (1365, 187834), (1482, 173005), (1729, 148290), (1995, 128518), (2470, 103803), (2730, 93917), (3458, 74145), (3705, 69202), (3990, 64259), (4943, 51870), (5187, 49430), (7410, 34601), (8645, 29658), (9886, 25935), (10374, 24715), (14829, 17290)]