87517280

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5639}}^1$

素因数の和:5751

約数の個数: 48

約数和(自身を含む): 208928160

約数和(自身を除く): 121410880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 5639, 7760, 11278, 15520, 22556, 28195, 45112, 56390, 90224, 112780, 180448, 225560, 451120, 546983, 902240, 1093966, 2187932, 2734915, 4375864, 5469830, 8751728, 10939660, 17503456, 21879320, 43758640, 87517280]

約数ペア:

[(1, 87517280), (2, 43758640), (4, 21879320), (5, 17503456), (8, 10939660), (10, 8751728), (16, 5469830), (20, 4375864), (32, 2734915), (40, 2187932), (80, 1093966), (97, 902240), (160, 546983), (194, 451120), (388, 225560), (485, 180448), (776, 112780), (970, 90224), (1552, 56390), (1940, 45112), (3104, 28195), (3880, 22556), (5639, 15520), (7760, 11278)]