641879552

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1093}}^1$

素因数の和:1179

約数の個数: 80

約数和(自身を含む): 1360900992

約数和(自身を除く): 719021440

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 248, 256, 296, 496, 512, 592, 992, 1093, 1147, 1184, 1984, 2186, 2294, 2368, 3968, 4372, 4588, 4736, 7936, 8744, 9176, 9472, 15872, 17488, 18352, 18944, 33883, 34976, 36704, 40441, 67766, 69952, 73408, 80882, 135532, 139904, 146816, 161764, 271064, 279808, 293632, 323528, 542128, 559616, 587264, 647056, 1084256, 1253671, 1294112, 2168512, 2507342, 2588224, 4337024, 5014684, 5176448, 8674048, 10029368, 10352896, 17348096, 20058736, 20705792, 40117472, 80234944, 160469888, 320939776, 641879552]

約数ペア:

[(1, 641879552), (2, 320939776), (4, 160469888), (8, 80234944), (16, 40117472), (31, 20705792), (32, 20058736), (37, 17348096), (62, 10352896), (64, 10029368), (74, 8674048), (124, 5176448), (128, 5014684), (148, 4337024), (248, 2588224), (256, 2507342), (296, 2168512), (496, 1294112), (512, 1253671), (592, 1084256), (992, 647056), (1093, 587264), (1147, 559616), (1184, 542128), (1984, 323528), (2186, 293632), (2294, 279808), (2368, 271064), (3968, 161764), (4372, 146816), (4588, 139904), (4736, 135532), (7936, 80882), (8744, 73408), (9176, 69952), (9472, 67766), (15872, 40441), (17488, 36704), (18352, 34976), (18944, 33883)]