128904448

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 273405440

約数和(自身を除く): 144500992

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 248, 256, 296, 439, 496, 592, 878, 992, 1147, 1184, 1756, 1984, 2294, 2368, 3512, 3968, 4588, 4736, 7024, 7936, 9176, 9472, 13609, 14048, 16243, 18352, 27218, 28096, 32486, 36704, 54436, 56192, 64972, 73408, 108872, 112384, 129944, 146816, 217744, 259888, 293632, 435488, 503533, 519776, 870976, 1007066, 1039552, 1741952, 2014132, 2079104, 3483904, 4028264, 4158208, 8056528, 16113056, 32226112, 64452224, 128904448]

約数ペア:

[(1, 128904448), (2, 64452224), (4, 32226112), (8, 16113056), (16, 8056528), (31, 4158208), (32, 4028264), (37, 3483904), (62, 2079104), (64, 2014132), (74, 1741952), (124, 1039552), (128, 1007066), (148, 870976), (248, 519776), (256, 503533), (296, 435488), (439, 293632), (496, 259888), (592, 217744), (878, 146816), (992, 129944), (1147, 112384), (1184, 108872), (1756, 73408), (1984, 64972), (2294, 56192), (2368, 54436), (3512, 36704), (3968, 32486), (4588, 28096), (4736, 27218), (7024, 18352), (7936, 16243), (9176, 14048), (9472, 13609)]