643105875

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 1125715968

約数和(自身を除く): 482610093

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 173, 345, 375, 431, 519, 575, 865, 1293, 1725, 2155, 2595, 2875, 3979, 4325, 6465, 8625, 9913, 10775, 11937, 12975, 19895, 21625, 29739, 32325, 49565, 53875, 59685, 64875, 74563, 99475, 148695, 161625, 223689, 247825, 298425, 372815, 497375, 743475, 1118445, 1239125, 1492125, 1714949, 1864075, 3717375, 5144847, 5592225, 8574745, 9320375, 25724235, 27961125, 42873725, 128621175, 214368625, 643105875]

約数ペア:

[(1, 643105875), (3, 214368625), (5, 128621175), (15, 42873725), (23, 27961125), (25, 25724235), (69, 9320375), (75, 8574745), (115, 5592225), (125, 5144847), (173, 3717375), (345, 1864075), (375, 1714949), (431, 1492125), (519, 1239125), (575, 1118445), (865, 743475), (1293, 497375), (1725, 372815), (2155, 298425), (2595, 247825), (2875, 223689), (3979, 161625), (4325, 148695), (6465, 99475), (8625, 74563), (9913, 64875), (10775, 59685), (11937, 53875), (12975, 49565), (19895, 32325), (21625, 29739)]