81947640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7673}}^1$

素因数の和:7776

約数の個数: 64

約数和(自身を含む): 248637600

約数和(自身を除く): 166689960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1780, 2136, 2670, 3560, 5340, 7673, 10680, 15346, 23019, 30692, 38365, 46038, 61384, 76730, 92076, 115095, 153460, 184152, 230190, 306920, 460380, 682897, 920760, 1365794, 2048691, 2731588, 3414485, 4097382, 5463176, 6828970, 8194764, 10243455, 13657940, 16389528, 20486910, 27315880, 40973820, 81947640]

約数ペア:

[(1, 81947640), (2, 40973820), (3, 27315880), (4, 20486910), (5, 16389528), (6, 13657940), (8, 10243455), (10, 8194764), (12, 6828970), (15, 5463176), (20, 4097382), (24, 3414485), (30, 2731588), (40, 2048691), (60, 1365794), (89, 920760), (120, 682897), (178, 460380), (267, 306920), (356, 230190), (445, 184152), (534, 153460), (712, 115095), (890, 92076), (1068, 76730), (1335, 61384), (1780, 46038), (2136, 38365), (2670, 30692), (3560, 23019), (5340, 15346), (7673, 10680)]