161500820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 378728448

約数和(自身を除く): 217227628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 73, 127, 130, 134, 146, 254, 260, 268, 292, 335, 365, 508, 635, 670, 730, 871, 949, 1270, 1340, 1460, 1651, 1742, 1898, 2540, 3302, 3484, 3796, 4355, 4745, 4891, 6604, 8255, 8509, 8710, 9271, 9490, 9782, 16510, 17018, 17420, 18542, 18980, 19564, 24455, 33020, 34036, 37084, 42545, 46355, 48910, 63583, 85090, 92710, 97820, 110617, 120523, 127166, 170180, 185420, 221234, 241046, 254332, 317915, 442468, 482092, 553085, 602615, 621157, 635830, 1106170, 1205230, 1242314, 1271660, 2212340, 2410460, 2484628, 3105785, 6211570, 8075041, 12423140, 16150082, 32300164, 40375205, 80750410, 161500820]

約数ペア:

[(1, 161500820), (2, 80750410), (4, 40375205), (5, 32300164), (10, 16150082), (13, 12423140), (20, 8075041), (26, 6211570), (52, 3105785), (65, 2484628), (67, 2410460), (73, 2212340), (127, 1271660), (130, 1242314), (134, 1205230), (146, 1106170), (254, 635830), (260, 621157), (268, 602615), (292, 553085), (335, 482092), (365, 442468), (508, 317915), (635, 254332), (670, 241046), (730, 221234), (871, 185420), (949, 170180), (1270, 127166), (1340, 120523), (1460, 110617), (1651, 97820), (1742, 92710), (1898, 85090), (2540, 63583), (3302, 48910), (3484, 46355), (3796, 42545), (4355, 37084), (4745, 34036), (4891, 33020), (6604, 24455), (8255, 19564), (8509, 18980), (8710, 18542), (9271, 17420), (9490, 17018), (9782, 16510)]