808413040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{797}}^1$

素因数の和:1250

約数の個数: 80

約数和(自身を含む): 1947375360

約数和(自身を除く): 1138962320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 409, 496, 620, 797, 818, 1240, 1594, 1636, 2045, 2480, 3188, 3272, 3985, 4090, 6376, 6544, 7970, 8180, 12679, 12752, 15940, 16360, 24707, 25358, 31880, 32720, 49414, 50716, 63395, 63760, 98828, 101432, 123535, 126790, 197656, 202864, 247070, 253580, 325973, 395312, 494140, 507160, 651946, 988280, 1014320, 1303892, 1629865, 1976560, 2607784, 3259730, 5215568, 6519460, 10105163, 13038920, 20210326, 26077840, 40420652, 50525815, 80841304, 101051630, 161682608, 202103260, 404206520, 808413040]

約数ペア:

[(1, 808413040), (2, 404206520), (4, 202103260), (5, 161682608), (8, 101051630), (10, 80841304), (16, 50525815), (20, 40420652), (31, 26077840), (40, 20210326), (62, 13038920), (80, 10105163), (124, 6519460), (155, 5215568), (248, 3259730), (310, 2607784), (409, 1976560), (496, 1629865), (620, 1303892), (797, 1014320), (818, 988280), (1240, 651946), (1594, 507160), (1636, 494140), (2045, 395312), (2480, 325973), (3188, 253580), (3272, 247070), (3985, 202864), (4090, 197656), (6376, 126790), (6544, 123535), (7970, 101432), (8180, 98828), (12679, 63760), (12752, 63395), (15940, 50716), (16360, 49414), (24707, 32720), (25358, 31880)]