15281140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 38610432

約数和(自身を除く): 23329292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 503, 620, 868, 980, 1006, 1085, 1519, 2012, 2170, 2515, 3038, 3521, 4340, 5030, 6076, 7042, 7595, 10060, 14084, 15190, 15593, 17605, 24647, 30380, 31186, 35210, 49294, 62372, 70420, 77965, 98588, 109151, 123235, 155930, 218302, 246470, 311860, 436604, 492940, 545755, 764057, 1091510, 1528114, 2183020, 3056228, 3820285, 7640570, 15281140]

約数ペア:

[(1, 15281140), (2, 7640570), (4, 3820285), (5, 3056228), (7, 2183020), (10, 1528114), (14, 1091510), (20, 764057), (28, 545755), (31, 492940), (35, 436604), (49, 311860), (62, 246470), (70, 218302), (98, 155930), (124, 123235), (140, 109151), (155, 98588), (196, 77965), (217, 70420), (245, 62372), (310, 49294), (434, 35210), (490, 31186), (503, 30380), (620, 24647), (868, 17605), (980, 15593), (1006, 15190), (1085, 14084), (1519, 10060), (2012, 7595), (2170, 7042), (2515, 6076), (3038, 5030), (3521, 4340)]