667865984

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4549}}^1$

素因数の和:4631

約数の個数: 64

約数和(自身を含む): 1410864000

約数和(自身を除く): 742998016

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 248, 296, 496, 592, 992, 1147, 1184, 1984, 2294, 2368, 3968, 4549, 4588, 4736, 9098, 9176, 18196, 18352, 36392, 36704, 72784, 73408, 141019, 145568, 146816, 168313, 282038, 291136, 336626, 564076, 582272, 673252, 1128152, 1346504, 2256304, 2693008, 4512608, 5217703, 5386016, 9025216, 10435406, 10772032, 18050432, 20870812, 21544064, 41741624, 83483248, 166966496, 333932992, 667865984]

約数ペア:

[(1, 667865984), (2, 333932992), (4, 166966496), (8, 83483248), (16, 41741624), (31, 21544064), (32, 20870812), (37, 18050432), (62, 10772032), (64, 10435406), (74, 9025216), (124, 5386016), (128, 5217703), (148, 4512608), (248, 2693008), (296, 2256304), (496, 1346504), (592, 1128152), (992, 673252), (1147, 582272), (1184, 564076), (1984, 336626), (2294, 291136), (2368, 282038), (3968, 168313), (4549, 146816), (4588, 145568), (4736, 141019), (9098, 73408), (9176, 72784), (18196, 36704), (18352, 36392)]