131578880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:885

約数の個数: 88

約数和(自身を含む): 326209920

約数和(自身を除く): 194631040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 829, 992, 1024, 1240, 1280, 1658, 1984, 2480, 2560, 3316, 3968, 4145, 4960, 5120, 6632, 7936, 8290, 9920, 13264, 15872, 16580, 19840, 25699, 26528, 31744, 33160, 39680, 51398, 53056, 66320, 79360, 102796, 106112, 128495, 132640, 158720, 205592, 212224, 256990, 265280, 411184, 424448, 513980, 530560, 822368, 848896, 1027960, 1061120, 1644736, 2055920, 2122240, 3289472, 4111840, 4244480, 6578944, 8223680, 13157888, 16447360, 26315776, 32894720, 65789440, 131578880]

約数ペア:

[(1, 131578880), (2, 65789440), (4, 32894720), (5, 26315776), (8, 16447360), (10, 13157888), (16, 8223680), (20, 6578944), (31, 4244480), (32, 4111840), (40, 3289472), (62, 2122240), (64, 2055920), (80, 1644736), (124, 1061120), (128, 1027960), (155, 848896), (160, 822368), (248, 530560), (256, 513980), (310, 424448), (320, 411184), (496, 265280), (512, 256990), (620, 212224), (640, 205592), (829, 158720), (992, 132640), (1024, 128495), (1240, 106112), (1280, 102796), (1658, 79360), (1984, 66320), (2480, 53056), (2560, 51398), (3316, 39680), (3968, 33160), (4145, 31744), (4960, 26528), (5120, 25699), (6632, 19840), (7936, 16580), (8290, 15872), (9920, 13264)]