643860

素因数分解:

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

素因数の和:102

約数の個数: 108

約数和(自身を含む): 2303028

約数和(自身を除く): 1659168

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 73, 84, 90, 98, 105, 126, 140, 146, 147, 180, 196, 210, 219, 245, 252, 292, 294, 315, 365, 420, 438, 441, 490, 511, 588, 630, 657, 730, 735, 876, 882, 980, 1022, 1095, 1260, 1314, 1460, 1470, 1533, 1764, 2044, 2190, 2205, 2555, 2628, 2940, 3066, 3285, 3577, 4380, 4410, 4599, 5110, 6132, 6570, 7154, 7665, 8820, 9198, 10220, 10731, 13140, 14308, 15330, 17885, 18396, 21462, 22995, 30660, 32193, 35770, 42924, 45990, 53655, 64386, 71540, 91980, 107310, 128772, 160965, 214620, 321930, 643860]

約数ペア:

[(1, 643860), (2, 321930), (3, 214620), (4, 160965), (5, 128772), (6, 107310), (7, 91980), (9, 71540), (10, 64386), (12, 53655), (14, 45990), (15, 42924), (18, 35770), (20, 32193), (21, 30660), (28, 22995), (30, 21462), (35, 18396), (36, 17885), (42, 15330), (45, 14308), (49, 13140), (60, 10731), (63, 10220), (70, 9198), (73, 8820), (84, 7665), (90, 7154), (98, 6570), (105, 6132), (126, 5110), (140, 4599), (146, 4410), (147, 4380), (180, 3577), (196, 3285), (210, 3066), (219, 2940), (245, 2628), (252, 2555), (292, 2205), (294, 2190), (315, 2044), (365, 1764), (420, 1533), (438, 1470), (441, 1460), (490, 1314), (511, 1260), (588, 1095), (630, 1022), (657, 980), (730, 882), (735, 876)]