19679940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15619}}^1$

素因数の和:15641

約数の個数: 72

約数和(自身を含む): 68228160

約数和(自身を除く): 48548220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15619, 31238, 46857, 62476, 78095, 93714, 109333, 140571, 156190, 187428, 218666, 234285, 281142, 312380, 327999, 437332, 468570, 546665, 562284, 655998, 702855, 937140, 983997, 1093330, 1311996, 1405710, 1639995, 1967994, 2186660, 2811420, 3279990, 3935988, 4919985, 6559980, 9839970, 19679940]

約数ペア:

[(1, 19679940), (2, 9839970), (3, 6559980), (4, 4919985), (5, 3935988), (6, 3279990), (7, 2811420), (9, 2186660), (10, 1967994), (12, 1639995), (14, 1405710), (15, 1311996), (18, 1093330), (20, 983997), (21, 937140), (28, 702855), (30, 655998), (35, 562284), (36, 546665), (42, 468570), (45, 437332), (60, 327999), (63, 312380), (70, 281142), (84, 234285), (90, 218666), (105, 187428), (126, 156190), (140, 140571), (180, 109333), (210, 93714), (252, 78095), (315, 62476), (420, 46857), (630, 31238), (1260, 15619)]