177744980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{7789}}^1$

素因数の和:7968

約数の個数: 48

約数和(自身を含む): 429260160

約数和(自身を除く): 251515180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1630, 2282, 3260, 4564, 5705, 7789, 11410, 15578, 22820, 31156, 38945, 54523, 77890, 109046, 155780, 218092, 272615, 545230, 1090460, 1269607, 2539214, 5078428, 6348035, 8887249, 12696070, 17774498, 25392140, 35548996, 44436245, 88872490, 177744980]

約数ペア:

[(1, 177744980), (2, 88872490), (4, 44436245), (5, 35548996), (7, 25392140), (10, 17774498), (14, 12696070), (20, 8887249), (28, 6348035), (35, 5078428), (70, 2539214), (140, 1269607), (163, 1090460), (326, 545230), (652, 272615), (815, 218092), (1141, 155780), (1630, 109046), (2282, 77890), (3260, 54523), (4564, 38945), (5705, 31156), (7789, 22820), (11410, 15578)]