257808400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1289

約数の個数: 120

約数和(自身を含む): 677528064

約数和(自身を除く): 419719664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 34, 40, 50, 62, 68, 80, 85, 100, 124, 136, 155, 170, 200, 248, 272, 310, 340, 400, 425, 496, 527, 620, 680, 775, 850, 1054, 1223, 1240, 1360, 1550, 1700, 2108, 2446, 2480, 2635, 3100, 3400, 4216, 4892, 5270, 6115, 6200, 6800, 8432, 9784, 10540, 12230, 12400, 13175, 19568, 20791, 21080, 24460, 26350, 30575, 37913, 41582, 42160, 48920, 52700, 61150, 75826, 83164, 97840, 103955, 105400, 122300, 151652, 166328, 189565, 207910, 210800, 244600, 303304, 332656, 379130, 415820, 489200, 519775, 606608, 644521, 758260, 831640, 947825, 1039550, 1289042, 1516520, 1663280, 1895650, 2079100, 2578084, 3033040, 3222605, 3791300, 4158200, 5156168, 6445210, 7582600, 8316400, 10312336, 12890420, 15165200, 16113025, 25780840, 32226050, 51561680, 64452100, 128904200, 257808400]

約数ペア:

[(1, 257808400), (2, 128904200), (4, 64452100), (5, 51561680), (8, 32226050), (10, 25780840), (16, 16113025), (17, 15165200), (20, 12890420), (25, 10312336), (31, 8316400), (34, 7582600), (40, 6445210), (50, 5156168), (62, 4158200), (68, 3791300), (80, 3222605), (85, 3033040), (100, 2578084), (124, 2079100), (136, 1895650), (155, 1663280), (170, 1516520), (200, 1289042), (248, 1039550), (272, 947825), (310, 831640), (340, 758260), (400, 644521), (425, 606608), (496, 519775), (527, 489200), (620, 415820), (680, 379130), (775, 332656), (850, 303304), (1054, 244600), (1223, 210800), (1240, 207910), (1360, 189565), (1550, 166328), (1700, 151652), (2108, 122300), (2446, 105400), (2480, 103955), (2635, 97840), (3100, 83164), (3400, 75826), (4216, 61150), (4892, 52700), (5270, 48920), (6115, 42160), (6200, 41582), (6800, 37913), (8432, 30575), (9784, 26350), (10540, 24460), (12230, 21080), (12400, 20791), (13175, 19568)]