20975520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:598

約数の個数: 96

約数和(自身を含む): 66951360

約数和(自身を除く): 45975840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 89, 96, 120, 160, 178, 240, 267, 356, 445, 480, 491, 534, 712, 890, 982, 1068, 1335, 1424, 1473, 1780, 1964, 2136, 2455, 2670, 2848, 2946, 3560, 3928, 4272, 4910, 5340, 5892, 7120, 7365, 7856, 8544, 9820, 10680, 11784, 14240, 14730, 15712, 19640, 21360, 23568, 29460, 39280, 42720, 43699, 47136, 58920, 78560, 87398, 117840, 131097, 174796, 218495, 235680, 262194, 349592, 436990, 524388, 655485, 699184, 873980, 1048776, 1310970, 1398368, 1747960, 2097552, 2621940, 3495920, 4195104, 5243880, 6991840, 10487760, 20975520]

約数ペア:

[(1, 20975520), (2, 10487760), (3, 6991840), (4, 5243880), (5, 4195104), (6, 3495920), (8, 2621940), (10, 2097552), (12, 1747960), (15, 1398368), (16, 1310970), (20, 1048776), (24, 873980), (30, 699184), (32, 655485), (40, 524388), (48, 436990), (60, 349592), (80, 262194), (89, 235680), (96, 218495), (120, 174796), (160, 131097), (178, 117840), (240, 87398), (267, 78560), (356, 58920), (445, 47136), (480, 43699), (491, 42720), (534, 39280), (712, 29460), (890, 23568), (982, 21360), (1068, 19640), (1335, 15712), (1424, 14730), (1473, 14240), (1780, 11784), (1964, 10680), (2136, 9820), (2455, 8544), (2670, 7856), (2848, 7365), (2946, 7120), (3560, 5892), (3928, 5340), (4272, 4910)]