78028240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 190273536

約数和(自身を除く): 112245296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 431, 496, 584, 620, 730, 862, 1168, 1240, 1460, 1724, 2155, 2263, 2480, 2920, 3448, 4310, 4526, 5840, 6896, 8620, 9052, 11315, 13361, 17240, 18104, 22630, 26722, 31463, 34480, 36208, 45260, 53444, 62926, 66805, 90520, 106888, 125852, 133610, 157315, 181040, 213776, 251704, 267220, 314630, 503408, 534440, 629260, 975353, 1068880, 1258520, 1950706, 2517040, 3901412, 4876765, 7802824, 9753530, 15605648, 19507060, 39014120, 78028240]

約数ペア:

[(1, 78028240), (2, 39014120), (4, 19507060), (5, 15605648), (8, 9753530), (10, 7802824), (16, 4876765), (20, 3901412), (31, 2517040), (40, 1950706), (62, 1258520), (73, 1068880), (80, 975353), (124, 629260), (146, 534440), (155, 503408), (248, 314630), (292, 267220), (310, 251704), (365, 213776), (431, 181040), (496, 157315), (584, 133610), (620, 125852), (730, 106888), (862, 90520), (1168, 66805), (1240, 62926), (1460, 53444), (1724, 45260), (2155, 36208), (2263, 34480), (2480, 31463), (2920, 26722), (3448, 22630), (4310, 18104), (4526, 17240), (5840, 13361), (6896, 11315), (8620, 9052)]