56881280

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 145704960

約数和(自身を除く): 88823680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 61, 62, 64, 80, 94, 122, 124, 128, 155, 160, 188, 235, 244, 248, 305, 310, 320, 376, 470, 488, 496, 610, 620, 640, 752, 940, 976, 992, 1220, 1240, 1457, 1504, 1880, 1891, 1952, 1984, 2440, 2480, 2867, 2914, 3008, 3760, 3782, 3904, 3968, 4880, 4960, 5734, 5828, 6016, 7285, 7520, 7564, 7808, 9455, 9760, 9920, 11468, 11656, 14335, 14570, 15040, 15128, 18910, 19520, 19840, 22936, 23312, 28670, 29140, 30080, 30256, 37820, 39040, 45872, 46624, 57340, 58280, 60512, 75640, 88877, 91744, 93248, 114680, 116560, 121024, 151280, 177754, 183488, 186496, 229360, 233120, 242048, 302560, 355508, 366976, 444385, 458720, 466240, 605120, 711016, 888770, 917440, 932480, 1210240, 1422032, 1777540, 1834880, 2844064, 3555080, 5688128, 7110160, 11376256, 14220320, 28440640, 56881280]

約数ペア:

[(1, 56881280), (2, 28440640), (4, 14220320), (5, 11376256), (8, 7110160), (10, 5688128), (16, 3555080), (20, 2844064), (31, 1834880), (32, 1777540), (40, 1422032), (47, 1210240), (61, 932480), (62, 917440), (64, 888770), (80, 711016), (94, 605120), (122, 466240), (124, 458720), (128, 444385), (155, 366976), (160, 355508), (188, 302560), (235, 242048), (244, 233120), (248, 229360), (305, 186496), (310, 183488), (320, 177754), (376, 151280), (470, 121024), (488, 116560), (496, 114680), (610, 93248), (620, 91744), (640, 88877), (752, 75640), (940, 60512), (976, 58280), (992, 57340), (1220, 46624), (1240, 45872), (1457, 39040), (1504, 37820), (1880, 30256), (1891, 30080), (1952, 29140), (1984, 28670), (2440, 23312), (2480, 22936), (2867, 19840), (2914, 19520), (3008, 18910), (3760, 15128), (3782, 15040), (3904, 14570), (3968, 14335), (4880, 11656), (4960, 11468), (5734, 9920), (5828, 9760), (6016, 9455), (7285, 7808), (7520, 7564)]