399839580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{317333}}^1$

素因数の和:317355

約数の個数: 72

約数和(自身を含む): 1386114912

約数和(自身を除く): 986275332

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, 317333, 634666, 951999, 1269332, 1586665, 1903998, 2221331, 2855997, 3173330, 3807996, 4442662, 4759995, 5711994, 6346660, 6663993, 8885324, 9519990, 11106655, 11423988, 13327986, 14279985, 19039980, 19991979, 22213310, 26655972, 28559970, 33319965, 39983958, 44426620, 57119940, 66639930, 79967916, 99959895, 133279860, 199919790, 399839580]

約数ペア:

[(1, 399839580), (2, 199919790), (3, 133279860), (4, 99959895), (5, 79967916), (6, 66639930), (7, 57119940), (9, 44426620), (10, 39983958), (12, 33319965), (14, 28559970), (15, 26655972), (18, 22213310), (20, 19991979), (21, 19039980), (28, 14279985), (30, 13327986), (35, 11423988), (36, 11106655), (42, 9519990), (45, 8885324), (60, 6663993), (63, 6346660), (70, 5711994), (84, 4759995), (90, 4442662), (105, 3807996), (126, 3173330), (140, 2855997), (180, 2221331), (210, 1903998), (252, 1586665), (315, 1269332), (420, 951999), (630, 634666), (1260, 317333)]