7993980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 24570000

約数和(自身を除く): 16576020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 499, 534, 801, 890, 998, 1068, 1335, 1497, 1602, 1780, 1996, 2495, 2670, 2994, 3204, 4005, 4491, 4990, 5340, 5988, 7485, 8010, 8982, 9980, 14970, 16020, 17964, 22455, 29940, 44411, 44910, 88822, 89820, 133233, 177644, 222055, 266466, 399699, 444110, 532932, 666165, 799398, 888220, 1332330, 1598796, 1998495, 2664660, 3996990, 7993980]

約数ペア:

[(1, 7993980), (2, 3996990), (3, 2664660), (4, 1998495), (5, 1598796), (6, 1332330), (9, 888220), (10, 799398), (12, 666165), (15, 532932), (18, 444110), (20, 399699), (30, 266466), (36, 222055), (45, 177644), (60, 133233), (89, 89820), (90, 88822), (178, 44910), (180, 44411), (267, 29940), (356, 22455), (445, 17964), (499, 16020), (534, 14970), (801, 9980), (890, 8982), (998, 8010), (1068, 7485), (1335, 5988), (1497, 5340), (1602, 4990), (1780, 4491), (1996, 4005), (2495, 3204), (2670, 2994)]