156949900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 354727296

約数和(自身を除く): 197777396

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 197, 257, 310, 394, 514, 620, 775, 788, 985, 1028, 1285, 1550, 1970, 2570, 3100, 3940, 4925, 5140, 6107, 6425, 7967, 9850, 12214, 12850, 15934, 19700, 24428, 25700, 30535, 31868, 39835, 50629, 61070, 79670, 101258, 122140, 152675, 159340, 199175, 202516, 253145, 305350, 398350, 506290, 610700, 796700, 1012580, 1265725, 1569499, 2531450, 3138998, 5062900, 6277996, 7847495, 15694990, 31389980, 39237475, 78474950, 156949900]

約数ペア:

[(1, 156949900), (2, 78474950), (4, 39237475), (5, 31389980), (10, 15694990), (20, 7847495), (25, 6277996), (31, 5062900), (50, 3138998), (62, 2531450), (100, 1569499), (124, 1265725), (155, 1012580), (197, 796700), (257, 610700), (310, 506290), (394, 398350), (514, 305350), (620, 253145), (775, 202516), (788, 199175), (985, 159340), (1028, 152675), (1285, 122140), (1550, 101258), (1970, 79670), (2570, 61070), (3100, 50629), (3940, 39835), (4925, 31868), (5140, 30535), (6107, 25700), (6425, 24428), (7967, 19700), (9850, 15934), (12214, 12850)]