20372355

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 37234080

約数和(自身を除く): 16861725

約数列:

[1, 3, 5, 9, 15, 29, 45, 67, 87, 145, 201, 233, 261, 335, 435, 603, 699, 1005, 1165, 1305, 1943, 2097, 3015, 3495, 5829, 6757, 9715, 10485, 15611, 17487, 20271, 29145, 33785, 46833, 60813, 78055, 87435, 101355, 140499, 234165, 304065, 452719, 702495, 1358157, 2263595, 4074471, 6790785, 20372355]

約数ペア:

[(1, 20372355), (3, 6790785), (5, 4074471), (9, 2263595), (15, 1358157), (29, 702495), (45, 452719), (67, 304065), (87, 234165), (145, 140499), (201, 101355), (233, 87435), (261, 78055), (335, 60813), (435, 46833), (603, 33785), (699, 29145), (1005, 20271), (1165, 17487), (1305, 15611), (1943, 10485), (2097, 9715), (3015, 6757), (3495, 5829)]