644130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 1777464

約数和(自身を除く): 1133334

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 421, 510, 765, 842, 1263, 1530, 2105, 2526, 3789, 4210, 6315, 7157, 7578, 12630, 14314, 18945, 21471, 35785, 37890, 42942, 64413, 71570, 107355, 128826, 214710, 322065, 644130]

約数ペア:

[(1, 644130), (2, 322065), (3, 214710), (5, 128826), (6, 107355), (9, 71570), (10, 64413), (15, 42942), (17, 37890), (18, 35785), (30, 21471), (34, 18945), (45, 14314), (51, 12630), (85, 7578), (90, 7157), (102, 6315), (153, 4210), (170, 3789), (255, 2526), (306, 2105), (421, 1530), (510, 1263), (765, 842)]