180792820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 416427480

約数和(自身を除く): 235634660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 169, 178, 260, 338, 356, 445, 601, 676, 845, 890, 1157, 1202, 1690, 1780, 2314, 2404, 3005, 3380, 4628, 5785, 6010, 7813, 11570, 12020, 15041, 15626, 23140, 30082, 31252, 39065, 53489, 60164, 75205, 78130, 101569, 106978, 150410, 156260, 203138, 213956, 267445, 300820, 406276, 507845, 534890, 695357, 1015690, 1069780, 1390714, 2031380, 2781428, 3476785, 6953570, 9039641, 13907140, 18079282, 36158564, 45198205, 90396410, 180792820]

約数ペア:

[(1, 180792820), (2, 90396410), (4, 45198205), (5, 36158564), (10, 18079282), (13, 13907140), (20, 9039641), (26, 6953570), (52, 3476785), (65, 2781428), (89, 2031380), (130, 1390714), (169, 1069780), (178, 1015690), (260, 695357), (338, 534890), (356, 507845), (445, 406276), (601, 300820), (676, 267445), (845, 213956), (890, 203138), (1157, 156260), (1202, 150410), (1690, 106978), (1780, 101569), (2314, 78130), (2404, 75205), (3005, 60164), (3380, 53489), (4628, 39065), (5785, 31252), (6010, 30082), (7813, 23140), (11570, 15626), (12020, 15041)]