89086720

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1$

素因数の和:981

約数の個数: 72

約数和(自身を含む): 216336960

約数和(自身を除く): 127250240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 881, 1264, 1280, 1580, 1762, 2528, 3160, 3524, 4405, 5056, 6320, 7048, 8810, 10112, 12640, 14096, 17620, 20224, 25280, 28192, 35240, 50560, 56384, 69599, 70480, 101120, 112768, 139198, 140960, 225536, 278396, 281920, 347995, 556792, 563840, 695990, 1113584, 1127680, 1391980, 2227168, 2783960, 4454336, 5567920, 8908672, 11135840, 17817344, 22271680, 44543360, 89086720]

約数ペア:

[(1, 89086720), (2, 44543360), (4, 22271680), (5, 17817344), (8, 11135840), (10, 8908672), (16, 5567920), (20, 4454336), (32, 2783960), (40, 2227168), (64, 1391980), (79, 1127680), (80, 1113584), (128, 695990), (158, 563840), (160, 556792), (256, 347995), (316, 281920), (320, 278396), (395, 225536), (632, 140960), (640, 139198), (790, 112768), (881, 101120), (1264, 70480), (1280, 69599), (1580, 56384), (1762, 50560), (2528, 35240), (3160, 28192), (3524, 25280), (4405, 20224), (5056, 17620), (6320, 14096), (7048, 12640), (8810, 10112)]