28779680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9467}}^1$

素因数の和:9501

約数の個数: 48

約数和(自身を含む): 71578080

約数和(自身を除く): 42798400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 9467, 18934, 37868, 47335, 75736, 94670, 151472, 179873, 189340, 302944, 359746, 378680, 719492, 757360, 899365, 1438984, 1514720, 1798730, 2877968, 3597460, 5755936, 7194920, 14389840, 28779680]

約数ペア:

[(1, 28779680), (2, 14389840), (4, 7194920), (5, 5755936), (8, 3597460), (10, 2877968), (16, 1798730), (19, 1514720), (20, 1438984), (32, 899365), (38, 757360), (40, 719492), (76, 378680), (80, 359746), (95, 302944), (152, 189340), (160, 179873), (190, 151472), (304, 94670), (380, 75736), (608, 47335), (760, 37868), (1520, 18934), (3040, 9467)]