490403920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:305

約数の個数: 120

約数和(自身を含む): 1218933144

約数和(自身を除く): 728529224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 37, 40, 58, 74, 80, 116, 145, 148, 185, 197, 232, 290, 296, 370, 394, 464, 580, 592, 740, 788, 841, 985, 1073, 1160, 1480, 1576, 1682, 1970, 2146, 2320, 2960, 3152, 3364, 3940, 4205, 4292, 5365, 5713, 6728, 7289, 7880, 8410, 8584, 10730, 11426, 13456, 14578, 15760, 16820, 17168, 21460, 22852, 28565, 29156, 31117, 33640, 36445, 42920, 45704, 57130, 58312, 62234, 67280, 72890, 85840, 91408, 114260, 116624, 124468, 145780, 155585, 165677, 211381, 228520, 248936, 291560, 311170, 331354, 422762, 457040, 497872, 583120, 622340, 662708, 828385, 845524, 1056905, 1244680, 1325416, 1656770, 1691048, 2113810, 2489360, 2650832, 3313540, 3382096, 4227620, 6130049, 6627080, 8455240, 12260098, 13254160, 16910480, 24520196, 30650245, 49040392, 61300490, 98080784, 122600980, 245201960, 490403920]

約数ペア:

[(1, 490403920), (2, 245201960), (4, 122600980), (5, 98080784), (8, 61300490), (10, 49040392), (16, 30650245), (20, 24520196), (29, 16910480), (37, 13254160), (40, 12260098), (58, 8455240), (74, 6627080), (80, 6130049), (116, 4227620), (145, 3382096), (148, 3313540), (185, 2650832), (197, 2489360), (232, 2113810), (290, 1691048), (296, 1656770), (370, 1325416), (394, 1244680), (464, 1056905), (580, 845524), (592, 828385), (740, 662708), (788, 622340), (841, 583120), (985, 497872), (1073, 457040), (1160, 422762), (1480, 331354), (1576, 311170), (1682, 291560), (1970, 248936), (2146, 228520), (2320, 211381), (2960, 165677), (3152, 155585), (3364, 145780), (3940, 124468), (4205, 116624), (4292, 114260), (5365, 91408), (5713, 85840), (6728, 72890), (7289, 67280), (7880, 62234), (8410, 58312), (8584, 57130), (10730, 45704), (11426, 42920), (13456, 36445), (14578, 33640), (15760, 31117), (16820, 29156), (17168, 28565), (21460, 22852)]