18425408

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 56

約数和(自身を含む): 38916864

約数和(自身を除く): 20491456

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 148, 248, 251, 296, 496, 502, 592, 992, 1004, 1147, 1184, 1984, 2008, 2294, 2368, 4016, 4588, 7781, 8032, 9176, 9287, 15562, 16064, 18352, 18574, 31124, 36704, 37148, 62248, 73408, 74296, 124496, 148592, 248992, 287897, 297184, 497984, 575794, 594368, 1151588, 2303176, 4606352, 9212704, 18425408]

約数ペア:

[(1, 18425408), (2, 9212704), (4, 4606352), (8, 2303176), (16, 1151588), (31, 594368), (32, 575794), (37, 497984), (62, 297184), (64, 287897), (74, 248992), (124, 148592), (148, 124496), (248, 74296), (251, 73408), (296, 62248), (496, 37148), (502, 36704), (592, 31124), (992, 18574), (1004, 18352), (1147, 16064), (1184, 15562), (1984, 9287), (2008, 9176), (2294, 8032), (2368, 7781), (4016, 4588)]