197681640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{126719}}^1$

素因数の和:126746

約数の個数: 64

約数和(自身を含む): 638668800

約数和(自身を除く): 440987160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 126719, 253438, 380157, 506876, 633595, 760314, 1013752, 1267190, 1520628, 1647347, 1900785, 2534380, 3041256, 3294694, 3801570, 4942041, 5068760, 6589388, 7603140, 8236735, 9884082, 13178776, 15206280, 16473470, 19768164, 24710205, 32946940, 39536328, 49420410, 65893880, 98840820, 197681640]

約数ペア:

[(1, 197681640), (2, 98840820), (3, 65893880), (4, 49420410), (5, 39536328), (6, 32946940), (8, 24710205), (10, 19768164), (12, 16473470), (13, 15206280), (15, 13178776), (20, 9884082), (24, 8236735), (26, 7603140), (30, 6589388), (39, 5068760), (40, 4942041), (52, 3801570), (60, 3294694), (65, 3041256), (78, 2534380), (104, 1900785), (120, 1647347), (130, 1520628), (156, 1267190), (195, 1013752), (260, 760314), (312, 633595), (390, 506876), (520, 380157), (780, 253438), (1560, 126719)]