15724980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 48048000

約数和(自身を除く): 32323020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 439, 597, 796, 878, 995, 1194, 1317, 1756, 1791, 1990, 2195, 2388, 2634, 2985, 3582, 3951, 3980, 4390, 5268, 5970, 6585, 7164, 7902, 8780, 8955, 11940, 13170, 15804, 17910, 19755, 26340, 35820, 39510, 79020, 87361, 174722, 262083, 349444, 436805, 524166, 786249, 873610, 1048332, 1310415, 1572498, 1747220, 2620830, 3144996, 3931245, 5241660, 7862490, 15724980]

約数ペア:

[(1, 15724980), (2, 7862490), (3, 5241660), (4, 3931245), (5, 3144996), (6, 2620830), (9, 1747220), (10, 1572498), (12, 1310415), (15, 1048332), (18, 873610), (20, 786249), (30, 524166), (36, 436805), (45, 349444), (60, 262083), (90, 174722), (180, 87361), (199, 79020), (398, 39510), (439, 35820), (597, 26340), (796, 19755), (878, 17910), (995, 15804), (1194, 13170), (1317, 11940), (1756, 8955), (1791, 8780), (1990, 7902), (2195, 7164), (2388, 6585), (2634, 5970), (2985, 5268), (3582, 4390), (3951, 3980)]