131861600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:473

約数の個数: 144

約数和(自身を含む): 358727040

約数和(自身を除く): 226865440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 409, 416, 496, 520, 620, 650, 775, 800, 806, 818, 992, 1040, 1240, 1300, 1550, 1612, 1636, 2015, 2045, 2080, 2480, 2600, 3100, 3224, 3272, 4030, 4090, 4960, 5200, 5317, 6200, 6448, 6544, 8060, 8180, 10075, 10225, 10400, 10634, 12400, 12679, 12896, 13088, 16120, 16360, 20150, 20450, 21268, 24800, 25358, 26585, 32240, 32720, 40300, 40900, 42536, 50716, 53170, 63395, 64480, 65440, 80600, 81800, 85072, 101432, 106340, 126790, 132925, 161200, 163600, 164827, 170144, 202864, 212680, 253580, 265850, 316975, 322400, 327200, 329654, 405728, 425360, 507160, 531700, 633950, 659308, 824135, 850720, 1014320, 1063400, 1267900, 1318616, 1648270, 2028640, 2126800, 2535800, 2637232, 3296540, 4120675, 4253600, 5071600, 5274464, 6593080, 8241350, 10143200, 13186160, 16482700, 26372320, 32965400, 65930800, 131861600]

約数ペア:

[(1, 131861600), (2, 65930800), (4, 32965400), (5, 26372320), (8, 16482700), (10, 13186160), (13, 10143200), (16, 8241350), (20, 6593080), (25, 5274464), (26, 5071600), (31, 4253600), (32, 4120675), (40, 3296540), (50, 2637232), (52, 2535800), (62, 2126800), (65, 2028640), (80, 1648270), (100, 1318616), (104, 1267900), (124, 1063400), (130, 1014320), (155, 850720), (160, 824135), (200, 659308), (208, 633950), (248, 531700), (260, 507160), (310, 425360), (325, 405728), (400, 329654), (403, 327200), (409, 322400), (416, 316975), (496, 265850), (520, 253580), (620, 212680), (650, 202864), (775, 170144), (800, 164827), (806, 163600), (818, 161200), (992, 132925), (1040, 126790), (1240, 106340), (1300, 101432), (1550, 85072), (1612, 81800), (1636, 80600), (2015, 65440), (2045, 64480), (2080, 63395), (2480, 53170), (2600, 50716), (3100, 42536), (3224, 40900), (3272, 40300), (4030, 32720), (4090, 32240), (4960, 26585), (5200, 25358), (5317, 24800), (6200, 21268), (6448, 20450), (6544, 20150), (8060, 16360), (8180, 16120), (10075, 13088), (10225, 12896), (10400, 12679), (10634, 12400)]