81294090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1433}}^1$

素因数の和:1535

約数の個数: 64

約数和(自身を含む): 204844032

約数和(自身を除く): 123549942

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 61, 62, 93, 122, 155, 183, 186, 305, 310, 366, 465, 610, 915, 930, 1433, 1830, 1891, 2866, 3782, 4299, 5673, 7165, 8598, 9455, 11346, 14330, 18910, 21495, 28365, 42990, 44423, 56730, 87413, 88846, 133269, 174826, 222115, 262239, 266538, 437065, 444230, 524478, 666345, 874130, 1311195, 1332690, 2622390, 2709803, 5419606, 8129409, 13549015, 16258818, 27098030, 40647045, 81294090]

約数ペア:

[(1, 81294090), (2, 40647045), (3, 27098030), (5, 16258818), (6, 13549015), (10, 8129409), (15, 5419606), (30, 2709803), (31, 2622390), (61, 1332690), (62, 1311195), (93, 874130), (122, 666345), (155, 524478), (183, 444230), (186, 437065), (305, 266538), (310, 262239), (366, 222115), (465, 174826), (610, 133269), (915, 88846), (930, 87413), (1433, 56730), (1830, 44423), (1891, 42990), (2866, 28365), (3782, 21495), (4299, 18910), (5673, 14330), (7165, 11346), (8598, 9455)]