256470360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:801

約数の個数: 128

約数和(自身を含む): 815443200

約数和(自身を除く): 558972840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 197, 228, 285, 380, 394, 456, 570, 571, 591, 760, 788, 985, 1140, 1142, 1182, 1576, 1713, 1970, 2280, 2284, 2364, 2855, 2955, 3426, 3743, 3940, 4568, 4728, 5710, 5910, 6852, 7486, 7880, 8565, 10849, 11229, 11420, 11820, 13704, 14972, 17130, 18715, 21698, 22458, 22840, 23640, 29944, 32547, 34260, 37430, 43396, 44916, 54245, 56145, 65094, 68520, 74860, 86792, 89832, 108490, 112290, 112487, 130188, 149720, 162735, 216980, 224580, 224974, 260376, 325470, 337461, 433960, 449160, 449948, 562435, 650940, 674922, 899896, 1124870, 1301880, 1349844, 1687305, 2137253, 2249740, 2699688, 3374610, 4274506, 4499480, 6411759, 6749220, 8549012, 10686265, 12823518, 13498440, 17098024, 21372530, 25647036, 32058795, 42745060, 51294072, 64117590, 85490120, 128235180, 256470360]

約数ペア:

[(1, 256470360), (2, 128235180), (3, 85490120), (4, 64117590), (5, 51294072), (6, 42745060), (8, 32058795), (10, 25647036), (12, 21372530), (15, 17098024), (19, 13498440), (20, 12823518), (24, 10686265), (30, 8549012), (38, 6749220), (40, 6411759), (57, 4499480), (60, 4274506), (76, 3374610), (95, 2699688), (114, 2249740), (120, 2137253), (152, 1687305), (190, 1349844), (197, 1301880), (228, 1124870), (285, 899896), (380, 674922), (394, 650940), (456, 562435), (570, 449948), (571, 449160), (591, 433960), (760, 337461), (788, 325470), (985, 260376), (1140, 224974), (1142, 224580), (1182, 216980), (1576, 162735), (1713, 149720), (1970, 130188), (2280, 112487), (2284, 112290), (2364, 108490), (2855, 89832), (2955, 86792), (3426, 74860), (3743, 68520), (3940, 65094), (4568, 56145), (4728, 54245), (5710, 44916), (5910, 43396), (6852, 37430), (7486, 34260), (7880, 32547), (8565, 29944), (10849, 23640), (11229, 22840), (11420, 22458), (11820, 21698), (13704, 18715), (14972, 17130)]