642466816

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:635

約数の個数: 88

約数和(自身を含む): 1364055296

約数和(自身を除く): 721588480

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 248, 256, 296, 496, 512, 547, 592, 992, 1024, 1094, 1147, 1184, 1984, 2188, 2294, 2368, 3968, 4376, 4588, 4736, 7936, 8752, 9176, 9472, 15872, 16957, 17504, 18352, 18944, 20239, 31744, 33914, 35008, 36704, 37888, 40478, 67828, 70016, 73408, 80956, 135656, 140032, 146816, 161912, 271312, 280064, 293632, 323824, 542624, 560128, 587264, 627409, 647648, 1085248, 1174528, 1254818, 1295296, 2170496, 2509636, 2590592, 4340992, 5019272, 5181184, 8681984, 10038544, 10362368, 17363968, 20077088, 20724736, 40154176, 80308352, 160616704, 321233408, 642466816]

約数ペア:

[(1, 642466816), (2, 321233408), (4, 160616704), (8, 80308352), (16, 40154176), (31, 20724736), (32, 20077088), (37, 17363968), (62, 10362368), (64, 10038544), (74, 8681984), (124, 5181184), (128, 5019272), (148, 4340992), (248, 2590592), (256, 2509636), (296, 2170496), (496, 1295296), (512, 1254818), (547, 1174528), (592, 1085248), (992, 647648), (1024, 627409), (1094, 587264), (1147, 560128), (1184, 542624), (1984, 323824), (2188, 293632), (2294, 280064), (2368, 271312), (3968, 161912), (4376, 146816), (4588, 140032), (4736, 135656), (7936, 80956), (8752, 73408), (9176, 70016), (9472, 67828), (15872, 40478), (16957, 37888), (17504, 36704), (18352, 35008), (18944, 33914), (20239, 31744)]