17958920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2118

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 29733880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2069, 2170, 4138, 4340, 8276, 8680, 10345, 14483, 16552, 20690, 28966, 41380, 57932, 64139, 72415, 82760, 115864, 128278, 144830, 256556, 289660, 320695, 448973, 513112, 579320, 641390, 897946, 1282780, 1795892, 2244865, 2565560, 3591784, 4489730, 8979460, 17958920]

約数ペア:

[(1, 17958920), (2, 8979460), (4, 4489730), (5, 3591784), (7, 2565560), (8, 2244865), (10, 1795892), (14, 1282780), (20, 897946), (28, 641390), (31, 579320), (35, 513112), (40, 448973), (56, 320695), (62, 289660), (70, 256556), (124, 144830), (140, 128278), (155, 115864), (217, 82760), (248, 72415), (280, 64139), (310, 57932), (434, 41380), (620, 28966), (868, 20690), (1085, 16552), (1240, 14483), (1736, 10345), (2069, 8680), (2170, 8276), (4138, 4340)]