81891960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29671}}^1$

素因数の和:29708

約数の個数: 64

約数和(自身を含む): 256366080

約数和(自身を除く): 174474120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 29671, 59342, 89013, 118684, 148355, 178026, 237368, 296710, 356052, 445065, 593420, 682433, 712104, 890130, 1186840, 1364866, 1780260, 2047299, 2729732, 3412165, 3560520, 4094598, 5459464, 6824330, 8189196, 10236495, 13648660, 16378392, 20472990, 27297320, 40945980, 81891960]

約数ペア:

[(1, 81891960), (2, 40945980), (3, 27297320), (4, 20472990), (5, 16378392), (6, 13648660), (8, 10236495), (10, 8189196), (12, 6824330), (15, 5459464), (20, 4094598), (23, 3560520), (24, 3412165), (30, 2729732), (40, 2047299), (46, 1780260), (60, 1364866), (69, 1186840), (92, 890130), (115, 712104), (120, 682433), (138, 593420), (184, 445065), (230, 356052), (276, 296710), (345, 237368), (460, 178026), (552, 148355), (690, 118684), (920, 89013), (1380, 59342), (2760, 29671)]