20711940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5659}}^1$

素因数の和:5732

約数の個数: 48

約数和(自身を含む): 58954560

約数和(自身を除く): 38242620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5659, 11318, 16977, 22636, 28295, 33954, 56590, 67908, 84885, 113180, 169770, 339540, 345199, 690398, 1035597, 1380796, 1725995, 2071194, 3451990, 4142388, 5177985, 6903980, 10355970, 20711940]

約数ペア:

[(1, 20711940), (2, 10355970), (3, 6903980), (4, 5177985), (5, 4142388), (6, 3451990), (10, 2071194), (12, 1725995), (15, 1380796), (20, 1035597), (30, 690398), (60, 345199), (61, 339540), (122, 169770), (183, 113180), (244, 84885), (305, 67908), (366, 56590), (610, 33954), (732, 28295), (915, 22636), (1220, 16977), (1830, 11318), (3660, 5659)]