304851280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 725096448

約数和(自身を除く): 420245168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 191, 281, 284, 355, 382, 562, 568, 710, 764, 955, 1124, 1136, 1405, 1420, 1528, 1910, 2248, 2810, 2840, 3056, 3820, 4496, 5620, 5680, 7640, 11240, 13561, 15280, 19951, 22480, 27122, 39902, 53671, 54244, 67805, 79804, 99755, 107342, 108488, 135610, 159608, 199510, 214684, 216976, 268355, 271220, 319216, 399020, 429368, 536710, 542440, 798040, 858736, 1073420, 1084880, 1596080, 2146840, 3810641, 4293680, 7621282, 15242564, 19053205, 30485128, 38106410, 60970256, 76212820, 152425640, 304851280]

約数ペア:

[(1, 304851280), (2, 152425640), (4, 76212820), (5, 60970256), (8, 38106410), (10, 30485128), (16, 19053205), (20, 15242564), (40, 7621282), (71, 4293680), (80, 3810641), (142, 2146840), (191, 1596080), (281, 1084880), (284, 1073420), (355, 858736), (382, 798040), (562, 542440), (568, 536710), (710, 429368), (764, 399020), (955, 319216), (1124, 271220), (1136, 268355), (1405, 216976), (1420, 214684), (1528, 199510), (1910, 159608), (2248, 135610), (2810, 108488), (2840, 107342), (3056, 99755), (3820, 79804), (4496, 67805), (5620, 54244), (5680, 53671), (7640, 39902), (11240, 27122), (13561, 22480), (15280, 19951)]