16840725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 30801600

約数和(自身を除く): 13960875

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 137, 149, 165, 275, 411, 447, 685, 745, 825, 1507, 1639, 2055, 2235, 3425, 3725, 4521, 4917, 7535, 8195, 10275, 11175, 20413, 22605, 24585, 37675, 40975, 61239, 102065, 113025, 122925, 224543, 306195, 510325, 673629, 1122715, 1530975, 3368145, 5613575, 16840725]

約数ペア:

[(1, 16840725), (3, 5613575), (5, 3368145), (11, 1530975), (15, 1122715), (25, 673629), (33, 510325), (55, 306195), (75, 224543), (137, 122925), (149, 113025), (165, 102065), (275, 61239), (411, 40975), (447, 37675), (685, 24585), (745, 22605), (825, 20413), (1507, 11175), (1639, 10275), (2055, 8195), (2235, 7535), (3425, 4917), (3725, 4521)]