201849680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 488064000

約数和(自身を除く): 286214320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 199, 248, 310, 398, 409, 496, 620, 796, 818, 995, 1240, 1592, 1636, 1990, 2045, 2480, 3184, 3272, 3980, 4090, 6169, 6544, 7960, 8180, 12338, 12679, 15920, 16360, 24676, 25358, 30845, 32720, 49352, 50716, 61690, 63395, 81391, 98704, 101432, 123380, 126790, 162782, 202864, 246760, 253580, 325564, 406955, 493520, 507160, 651128, 813910, 1014320, 1302256, 1627820, 2523121, 3255640, 5046242, 6511280, 10092484, 12615605, 20184968, 25231210, 40369936, 50462420, 100924840, 201849680]

約数ペア:

[(1, 201849680), (2, 100924840), (4, 50462420), (5, 40369936), (8, 25231210), (10, 20184968), (16, 12615605), (20, 10092484), (31, 6511280), (40, 5046242), (62, 3255640), (80, 2523121), (124, 1627820), (155, 1302256), (199, 1014320), (248, 813910), (310, 651128), (398, 507160), (409, 493520), (496, 406955), (620, 325564), (796, 253580), (818, 246760), (995, 202864), (1240, 162782), (1592, 126790), (1636, 123380), (1990, 101432), (2045, 98704), (2480, 81391), (3184, 63395), (3272, 61690), (3980, 50716), (4090, 49352), (6169, 32720), (6544, 30845), (7960, 25358), (8180, 24676), (12338, 16360), (12679, 15920)]