209970910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 423263232

約数和(自身を除く): 213292322

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 83, 85, 115, 166, 170, 230, 391, 415, 647, 782, 830, 1294, 1411, 1909, 1955, 2822, 3235, 3818, 3910, 6470, 7055, 9545, 10999, 14110, 14881, 19090, 21998, 29762, 32453, 53701, 54995, 64906, 74405, 107402, 109990, 148810, 162265, 252977, 268505, 324530, 505954, 537010, 912917, 1235123, 1264885, 1825834, 2470246, 2529770, 4564585, 6175615, 9129170, 12351230, 20997091, 41994182, 104985455, 209970910]

約数ペア:

[(1, 209970910), (2, 104985455), (5, 41994182), (10, 20997091), (17, 12351230), (23, 9129170), (34, 6175615), (46, 4564585), (83, 2529770), (85, 2470246), (115, 1825834), (166, 1264885), (170, 1235123), (230, 912917), (391, 537010), (415, 505954), (647, 324530), (782, 268505), (830, 252977), (1294, 162265), (1411, 148810), (1909, 109990), (1955, 107402), (2822, 74405), (3235, 64906), (3818, 54995), (3910, 53701), (6470, 32453), (7055, 29762), (9545, 21998), (10999, 19090), (14110, 14881)]