201217900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4993}}^1$

素因数の和:5051

約数の個数: 72

約数和(自身を含む): 485496704

約数和(自身を除く): 284278804

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 4993, 8060, 9986, 10075, 19972, 20150, 24965, 40300, 49930, 64909, 99860, 124825, 129818, 154783, 249650, 259636, 309566, 324545, 499300, 619132, 649090, 773915, 1298180, 1547830, 1622725, 2012179, 3095660, 3245450, 3869575, 4024358, 6490900, 7739150, 8048716, 10060895, 15478300, 20121790, 40243580, 50304475, 100608950, 201217900]

約数ペア:

[(1, 201217900), (2, 100608950), (4, 50304475), (5, 40243580), (10, 20121790), (13, 15478300), (20, 10060895), (25, 8048716), (26, 7739150), (31, 6490900), (50, 4024358), (52, 3869575), (62, 3245450), (65, 3095660), (100, 2012179), (124, 1622725), (130, 1547830), (155, 1298180), (260, 773915), (310, 649090), (325, 619132), (403, 499300), (620, 324545), (650, 309566), (775, 259636), (806, 249650), (1300, 154783), (1550, 129818), (1612, 124825), (2015, 99860), (3100, 64909), (4030, 49930), (4993, 40300), (8060, 24965), (9986, 20150), (10075, 19972)]