78765540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 260773632

約数和(自身を除く): 182008092

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, 367, 420, 438, 490, 511, 588, 730, 734, 735, 876, 980, 1022, 1095, 1101, 1460, 1468, 1470, 1533, 1835, 2044, 2190, 2202, 2555, 2569, 2940, 3066, 3577, 3670, 4380, 4404, 5110, 5138, 5505, 6132, 7154, 7340, 7665, 7707, 10220, 10276, 10731, 11010, 12845, 14308, 15330, 15414, 17885, 17983, 21462, 22020, 25690, 26791, 30660, 30828, 35770, 35966, 38535, 42924, 51380, 53582, 53655, 53949, 71540, 71932, 77070, 80373, 89915, 107164, 107310, 107898, 133955, 154140, 160746, 179830, 187537, 214620, 215796, 267910, 269745, 321492, 359660, 375074, 401865, 535820, 539490, 562611, 750148, 803730, 937685, 1078980, 1125222, 1312759, 1607460, 1875370, 2250444, 2625518, 2813055, 3750740, 3938277, 5251036, 5626110, 6563795, 7876554, 11252220, 13127590, 15753108, 19691385, 26255180, 39382770, 78765540]

約数ペア:

[(1, 78765540), (2, 39382770), (3, 26255180), (4, 19691385), (5, 15753108), (6, 13127590), (7, 11252220), (10, 7876554), (12, 6563795), (14, 5626110), (15, 5251036), (20, 3938277), (21, 3750740), (28, 2813055), (30, 2625518), (35, 2250444), (42, 1875370), (49, 1607460), (60, 1312759), (70, 1125222), (73, 1078980), (84, 937685), (98, 803730), (105, 750148), (140, 562611), (146, 539490), (147, 535820), (196, 401865), (210, 375074), (219, 359660), (245, 321492), (292, 269745), (294, 267910), (365, 215796), (367, 214620), (420, 187537), (438, 179830), (490, 160746), (511, 154140), (588, 133955), (730, 107898), (734, 107310), (735, 107164), (876, 89915), (980, 80373), (1022, 77070), (1095, 71932), (1101, 71540), (1460, 53949), (1468, 53655), (1470, 53582), (1533, 51380), (1835, 42924), (2044, 38535), (2190, 35966), (2202, 35770), (2555, 30828), (2569, 30660), (2940, 26791), (3066, 25690), (3577, 22020), (3670, 21462), (4380, 17983), (4404, 17885), (5110, 15414), (5138, 15330), (5505, 14308), (6132, 12845), (7154, 11010), (7340, 10731), (7665, 10276), (7707, 10220)]