20928390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:666

約数の個数: 96

約数和(自身を含む): 61067520

約数和(自身を除く): 40139130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 49, 69, 70, 98, 105, 115, 138, 147, 161, 210, 230, 245, 294, 322, 345, 483, 490, 619, 690, 735, 805, 966, 1127, 1238, 1470, 1610, 1857, 2254, 2415, 3095, 3381, 3714, 4333, 4830, 5635, 6190, 6762, 8666, 9285, 11270, 12999, 14237, 16905, 18570, 21665, 25998, 28474, 30331, 33810, 42711, 43330, 60662, 64995, 71185, 85422, 90993, 99659, 129990, 142370, 151655, 181986, 199318, 213555, 298977, 303310, 427110, 454965, 498295, 597954, 697613, 909930, 996590, 1395226, 1494885, 2092839, 2989770, 3488065, 4185678, 6976130, 10464195, 20928390]

約数ペア:

[(1, 20928390), (2, 10464195), (3, 6976130), (5, 4185678), (6, 3488065), (7, 2989770), (10, 2092839), (14, 1494885), (15, 1395226), (21, 996590), (23, 909930), (30, 697613), (35, 597954), (42, 498295), (46, 454965), (49, 427110), (69, 303310), (70, 298977), (98, 213555), (105, 199318), (115, 181986), (138, 151655), (147, 142370), (161, 129990), (210, 99659), (230, 90993), (245, 85422), (294, 71185), (322, 64995), (345, 60662), (483, 43330), (490, 42711), (619, 33810), (690, 30331), (735, 28474), (805, 25998), (966, 21665), (1127, 18570), (1238, 16905), (1470, 14237), (1610, 12999), (1857, 11270), (2254, 9285), (2415, 8666), (3095, 6762), (3381, 6190), (3714, 5635), (4333, 4830)]