256449840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56239}}^1$

素因数の和:56274

約数の個数: 80

約数和(自身を含む): 836851200

約数和(自身を除く): 580401360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 56239, 112478, 168717, 224956, 281195, 337434, 449912, 562390, 674868, 843585, 899824, 1068541, 1124780, 1349736, 1687170, 2137082, 2249560, 2699472, 3205623, 3374340, 4274164, 4499120, 5342705, 6411246, 6748680, 8548328, 10685410, 12822492, 13497360, 16028115, 17096656, 21370820, 25644984, 32056230, 42741640, 51289968, 64112460, 85483280, 128224920, 256449840]

約数ペア:

[(1, 256449840), (2, 128224920), (3, 85483280), (4, 64112460), (5, 51289968), (6, 42741640), (8, 32056230), (10, 25644984), (12, 21370820), (15, 17096656), (16, 16028115), (19, 13497360), (20, 12822492), (24, 10685410), (30, 8548328), (38, 6748680), (40, 6411246), (48, 5342705), (57, 4499120), (60, 4274164), (76, 3374340), (80, 3205623), (95, 2699472), (114, 2249560), (120, 2137082), (152, 1687170), (190, 1349736), (228, 1124780), (240, 1068541), (285, 899824), (304, 843585), (380, 674868), (456, 562390), (570, 449912), (760, 337434), (912, 281195), (1140, 224956), (1520, 168717), (2280, 112478), (4560, 56239)]