87779580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 290535840

約数和(自身を除く): 202756260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 73, 84, 98, 105, 140, 146, 147, 196, 210, 219, 245, 292, 294, 365, 409, 420, 438, 490, 511, 588, 730, 735, 818, 876, 980, 1022, 1095, 1227, 1460, 1470, 1533, 1636, 2044, 2045, 2190, 2454, 2555, 2863, 2940, 3066, 3577, 4090, 4380, 4908, 5110, 5726, 6132, 6135, 7154, 7665, 8180, 8589, 10220, 10731, 11452, 12270, 14308, 14315, 15330, 17178, 17885, 20041, 21462, 24540, 28630, 29857, 30660, 34356, 35770, 40082, 42924, 42945, 53655, 57260, 59714, 60123, 71540, 80164, 85890, 89571, 100205, 107310, 119428, 120246, 149285, 171780, 179142, 200410, 208999, 214620, 240492, 298570, 300615, 358284, 400820, 417998, 447855, 597140, 601230, 626997, 835996, 895710, 1044995, 1202460, 1253994, 1462993, 1791420, 2089990, 2507988, 2925986, 3134985, 4179980, 4388979, 5851972, 6269970, 7314965, 8777958, 12539940, 14629930, 17555916, 21944895, 29259860, 43889790, 87779580]

約数ペア:

[(1, 87779580), (2, 43889790), (3, 29259860), (4, 21944895), (5, 17555916), (6, 14629930), (7, 12539940), (10, 8777958), (12, 7314965), (14, 6269970), (15, 5851972), (20, 4388979), (21, 4179980), (28, 3134985), (30, 2925986), (35, 2507988), (42, 2089990), (49, 1791420), (60, 1462993), (70, 1253994), (73, 1202460), (84, 1044995), (98, 895710), (105, 835996), (140, 626997), (146, 601230), (147, 597140), (196, 447855), (210, 417998), (219, 400820), (245, 358284), (292, 300615), (294, 298570), (365, 240492), (409, 214620), (420, 208999), (438, 200410), (490, 179142), (511, 171780), (588, 149285), (730, 120246), (735, 119428), (818, 107310), (876, 100205), (980, 89571), (1022, 85890), (1095, 80164), (1227, 71540), (1460, 60123), (1470, 59714), (1533, 57260), (1636, 53655), (2044, 42945), (2045, 42924), (2190, 40082), (2454, 35770), (2555, 34356), (2863, 30660), (2940, 29857), (3066, 28630), (3577, 24540), (4090, 21462), (4380, 20041), (4908, 17885), (5110, 17178), (5726, 15330), (6132, 14315), (6135, 14308), (7154, 12270), (7665, 11452), (8180, 10731), (8589, 10220)]