205863560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:727

約数の個数: 128

約数和(自身を含む): 562083840

約数和(自身を除く): 356220280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 37, 40, 56, 62, 70, 74, 124, 140, 148, 155, 185, 217, 248, 259, 280, 296, 310, 370, 434, 518, 620, 641, 740, 868, 1036, 1085, 1147, 1240, 1282, 1295, 1480, 1736, 2072, 2170, 2294, 2564, 2590, 3205, 4340, 4487, 4588, 5128, 5180, 5735, 6410, 8029, 8680, 8974, 9176, 10360, 11470, 12820, 16058, 17948, 19871, 22435, 22940, 23717, 25640, 32116, 35896, 39742, 40145, 44870, 45880, 47434, 64232, 79484, 80290, 89740, 94868, 99355, 118585, 139097, 158968, 160580, 166019, 179480, 189736, 198710, 237170, 278194, 321160, 332038, 397420, 474340, 556388, 664076, 695485, 735227, 794840, 830095, 948680, 1112776, 1328152, 1390970, 1470454, 1660190, 2781940, 2940908, 3320380, 3676135, 5146589, 5563880, 5881816, 6640760, 7352270, 10293178, 14704540, 20586356, 25732945, 29409080, 41172712, 51465890, 102931780, 205863560]

約数ペア:

[(1, 205863560), (2, 102931780), (4, 51465890), (5, 41172712), (7, 29409080), (8, 25732945), (10, 20586356), (14, 14704540), (20, 10293178), (28, 7352270), (31, 6640760), (35, 5881816), (37, 5563880), (40, 5146589), (56, 3676135), (62, 3320380), (70, 2940908), (74, 2781940), (124, 1660190), (140, 1470454), (148, 1390970), (155, 1328152), (185, 1112776), (217, 948680), (248, 830095), (259, 794840), (280, 735227), (296, 695485), (310, 664076), (370, 556388), (434, 474340), (518, 397420), (620, 332038), (641, 321160), (740, 278194), (868, 237170), (1036, 198710), (1085, 189736), (1147, 179480), (1240, 166019), (1282, 160580), (1295, 158968), (1480, 139097), (1736, 118585), (2072, 99355), (2170, 94868), (2294, 89740), (2564, 80290), (2590, 79484), (3205, 64232), (4340, 47434), (4487, 45880), (4588, 44870), (5128, 40145), (5180, 39742), (5735, 35896), (6410, 32116), (8029, 25640), (8680, 23717), (8974, 22940), (9176, 22435), (10360, 19871), (11470, 17948), (12820, 16058)]