28908100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 69497288

約数和(自身を除く): 40589188

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 481, 601, 650, 740, 925, 962, 1202, 1300, 1850, 1924, 2404, 2405, 3005, 3700, 4810, 6010, 7813, 9620, 12020, 12025, 15025, 15626, 22237, 24050, 30050, 31252, 39065, 44474, 48100, 60100, 78130, 88948, 111185, 156260, 195325, 222370, 289081, 390650, 444740, 555925, 578162, 781300, 1111850, 1156324, 1445405, 2223700, 2890810, 5781620, 7227025, 14454050, 28908100]

約数ペア:

[(1, 28908100), (2, 14454050), (4, 7227025), (5, 5781620), (10, 2890810), (13, 2223700), (20, 1445405), (25, 1156324), (26, 1111850), (37, 781300), (50, 578162), (52, 555925), (65, 444740), (74, 390650), (100, 289081), (130, 222370), (148, 195325), (185, 156260), (260, 111185), (325, 88948), (370, 78130), (481, 60100), (601, 48100), (650, 44474), (740, 39065), (925, 31252), (962, 30050), (1202, 24050), (1300, 22237), (1850, 15626), (1924, 15025), (2404, 12025), (2405, 12020), (3005, 9620), (3700, 7813), (4810, 6010)]