20449300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 49121856

約数和(自身を除く): 28672556

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 25, 34, 46, 50, 68, 85, 92, 100, 115, 170, 230, 340, 391, 425, 460, 523, 575, 782, 850, 1046, 1150, 1564, 1700, 1955, 2092, 2300, 2615, 3910, 5230, 7820, 8891, 9775, 10460, 12029, 13075, 17782, 19550, 24058, 26150, 35564, 39100, 44455, 48116, 52300, 60145, 88910, 120290, 177820, 204493, 222275, 240580, 300725, 408986, 444550, 601450, 817972, 889100, 1022465, 1202900, 2044930, 4089860, 5112325, 10224650, 20449300]

約数ペア:

[(1, 20449300), (2, 10224650), (4, 5112325), (5, 4089860), (10, 2044930), (17, 1202900), (20, 1022465), (23, 889100), (25, 817972), (34, 601450), (46, 444550), (50, 408986), (68, 300725), (85, 240580), (92, 222275), (100, 204493), (115, 177820), (170, 120290), (230, 88910), (340, 60145), (391, 52300), (425, 48116), (460, 44455), (523, 39100), (575, 35564), (782, 26150), (850, 24058), (1046, 19550), (1150, 17782), (1564, 13075), (1700, 12029), (1955, 10460), (2092, 9775), (2300, 8891), (2615, 7820), (3910, 5230)]