169998700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{683}}^1$

素因数の和:847

約数の個数: 72

約数和(自身を含む): 391849920

約数和(自身を除く): 221851220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 131, 190, 262, 380, 475, 524, 655, 683, 950, 1310, 1366, 1900, 2489, 2620, 2732, 3275, 3415, 4978, 6550, 6830, 9956, 12445, 12977, 13100, 13660, 17075, 24890, 25954, 34150, 49780, 51908, 62225, 64885, 68300, 89473, 124450, 129770, 178946, 248900, 259540, 324425, 357892, 447365, 648850, 894730, 1297700, 1699987, 1789460, 2236825, 3399974, 4473650, 6799948, 8499935, 8947300, 16999870, 33999740, 42499675, 84999350, 169998700]

約数ペア:

[(1, 169998700), (2, 84999350), (4, 42499675), (5, 33999740), (10, 16999870), (19, 8947300), (20, 8499935), (25, 6799948), (38, 4473650), (50, 3399974), (76, 2236825), (95, 1789460), (100, 1699987), (131, 1297700), (190, 894730), (262, 648850), (380, 447365), (475, 357892), (524, 324425), (655, 259540), (683, 248900), (950, 178946), (1310, 129770), (1366, 124450), (1900, 89473), (2489, 68300), (2620, 64885), (2732, 62225), (3275, 51908), (3415, 49780), (4978, 34150), (6550, 25954), (6830, 24890), (9956, 17075), (12445, 13660), (12977, 13100)]