28874655

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 51957984

約数和(自身を除く): 23083329

約数列:

[1, 3, 5, 9, 15, 45, 61, 67, 157, 183, 201, 305, 335, 471, 549, 603, 785, 915, 1005, 1413, 2355, 2745, 3015, 4087, 7065, 9577, 10519, 12261, 20435, 28731, 31557, 36783, 47885, 52595, 61305, 86193, 94671, 143655, 157785, 183915, 430965, 473355, 641659, 1924977, 3208295, 5774931, 9624885, 28874655]

約数ペア:

[(1, 28874655), (3, 9624885), (5, 5774931), (9, 3208295), (15, 1924977), (45, 641659), (61, 473355), (67, 430965), (157, 183915), (183, 157785), (201, 143655), (305, 94671), (335, 86193), (471, 61305), (549, 52595), (603, 47885), (785, 36783), (915, 31557), (1005, 28731), (1413, 20435), (2355, 12261), (2745, 10519), (3015, 9577), (4087, 7065)]