978188725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 1296345600

約数和(自身を除く): 318156875

約数列:

[1, 5, 25, 31, 43, 149, 155, 197, 215, 745, 775, 985, 1075, 1333, 3725, 4619, 4925, 6107, 6407, 6665, 8471, 23095, 29353, 30535, 32035, 33325, 42355, 115475, 146765, 152675, 160175, 198617, 211775, 262601, 733825, 909943, 993085, 1262179, 1313005, 4549715, 4965425, 6310895, 6565025, 22748575, 31554475, 39127549, 195637745, 978188725]

約数ペア:

[(1, 978188725), (5, 195637745), (25, 39127549), (31, 31554475), (43, 22748575), (149, 6565025), (155, 6310895), (197, 4965425), (215, 4549715), (745, 1313005), (775, 1262179), (985, 993085), (1075, 909943), (1333, 733825), (3725, 262601), (4619, 211775), (4925, 198617), (6107, 160175), (6407, 152675), (6665, 146765), (8471, 115475), (23095, 42355), (29353, 33325), (30535, 32035)]