256867520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8821}}^1$

素因数の和:8858

約数の個数: 112

約数和(自身を含む): 752904768

約数和(自身を除く): 496037248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1120, 1456, 1820, 2080, 2240, 2912, 3640, 4160, 5824, 7280, 8821, 14560, 17642, 29120, 35284, 44105, 61747, 70568, 88210, 114673, 123494, 141136, 176420, 229346, 246988, 282272, 308735, 352840, 458692, 493976, 564544, 573365, 617470, 705680, 802711, 917384, 987952, 1146730, 1234940, 1411360, 1605422, 1834768, 1975904, 2293460, 2469880, 2822720, 3210844, 3669536, 3951808, 4013555, 4586920, 4939760, 6421688, 7339072, 8027110, 9173840, 9879520, 12843376, 16054220, 18347680, 19759040, 25686752, 32108440, 36695360, 51373504, 64216880, 128433760, 256867520]

約数ペア:

[(1, 256867520), (2, 128433760), (4, 64216880), (5, 51373504), (7, 36695360), (8, 32108440), (10, 25686752), (13, 19759040), (14, 18347680), (16, 16054220), (20, 12843376), (26, 9879520), (28, 9173840), (32, 8027110), (35, 7339072), (40, 6421688), (52, 4939760), (56, 4586920), (64, 4013555), (65, 3951808), (70, 3669536), (80, 3210844), (91, 2822720), (104, 2469880), (112, 2293460), (130, 1975904), (140, 1834768), (160, 1605422), (182, 1411360), (208, 1234940), (224, 1146730), (260, 987952), (280, 917384), (320, 802711), (364, 705680), (416, 617470), (448, 573365), (455, 564544), (520, 493976), (560, 458692), (728, 352840), (832, 308735), (910, 282272), (1040, 246988), (1120, 229346), (1456, 176420), (1820, 141136), (2080, 123494), (2240, 114673), (2912, 88210), (3640, 70568), (4160, 61747), (5824, 44105), (7280, 35284), (8821, 29120), (14560, 17642)]