312155120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 754237440

約数和(自身を除く): 442082320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 191, 248, 310, 382, 496, 620, 659, 764, 955, 1240, 1318, 1528, 1910, 2480, 2636, 3056, 3295, 3820, 5272, 5921, 6590, 7640, 10544, 11842, 13180, 15280, 20429, 23684, 26360, 29605, 40858, 47368, 52720, 59210, 81716, 94736, 102145, 118420, 125869, 163432, 204290, 236840, 251738, 326864, 408580, 473680, 503476, 629345, 817160, 1006952, 1258690, 1634320, 2013904, 2517380, 3901939, 5034760, 7803878, 10069520, 15607756, 19509695, 31215512, 39019390, 62431024, 78038780, 156077560, 312155120]

約数ペア:

[(1, 312155120), (2, 156077560), (4, 78038780), (5, 62431024), (8, 39019390), (10, 31215512), (16, 19509695), (20, 15607756), (31, 10069520), (40, 7803878), (62, 5034760), (80, 3901939), (124, 2517380), (155, 2013904), (191, 1634320), (248, 1258690), (310, 1006952), (382, 817160), (496, 629345), (620, 503476), (659, 473680), (764, 408580), (955, 326864), (1240, 251738), (1318, 236840), (1528, 204290), (1910, 163432), (2480, 125869), (2636, 118420), (3056, 102145), (3295, 94736), (3820, 81716), (5272, 59210), (5921, 52720), (6590, 47368), (7640, 40858), (10544, 29605), (11842, 26360), (13180, 23684), (15280, 20429)]