1801477925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1021}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 2474997840

約数和(自身を除く): 673519915

約数列:

[1, 5, 13, 25, 61, 65, 89, 305, 325, 445, 793, 1021, 1157, 1525, 2225, 3965, 5105, 5429, 5785, 13273, 19825, 25525, 27145, 28925, 62281, 66365, 70577, 90869, 135725, 311405, 331825, 352885, 454345, 809653, 1181297, 1557025, 1764425, 2271725, 4048265, 5543009, 5906485, 20241325, 27715045, 29532425, 72059117, 138575225, 360295585, 1801477925]

約数ペア:

[(1, 1801477925), (5, 360295585), (13, 138575225), (25, 72059117), (61, 29532425), (65, 27715045), (89, 20241325), (305, 5906485), (325, 5543009), (445, 4048265), (793, 2271725), (1021, 1764425), (1157, 1557025), (1525, 1181297), (2225, 809653), (3965, 454345), (5105, 352885), (5429, 331825), (5785, 311405), (13273, 135725), (19825, 90869), (25525, 70577), (27145, 66365), (28925, 62281)]