421511960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17891}}^1$

素因数の和:17952

約数の個数: 64

約数和(自身を含む): 1030579200

約数和(自身を除く): 609067240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 310, 380, 589, 620, 760, 1178, 1240, 2356, 2945, 4712, 5890, 11780, 17891, 23560, 35782, 71564, 89455, 143128, 178910, 339929, 357820, 554621, 679858, 715640, 1109242, 1359716, 1699645, 2218484, 2719432, 2773105, 3399290, 4436968, 5546210, 6798580, 10537799, 11092420, 13597160, 21075598, 22184840, 42151196, 52688995, 84302392, 105377990, 210755980, 421511960]

約数ペア:

[(1, 421511960), (2, 210755980), (4, 105377990), (5, 84302392), (8, 52688995), (10, 42151196), (19, 22184840), (20, 21075598), (31, 13597160), (38, 11092420), (40, 10537799), (62, 6798580), (76, 5546210), (95, 4436968), (124, 3399290), (152, 2773105), (155, 2719432), (190, 2218484), (248, 1699645), (310, 1359716), (380, 1109242), (589, 715640), (620, 679858), (760, 554621), (1178, 357820), (1240, 339929), (2356, 178910), (2945, 143128), (4712, 89455), (5890, 71564), (11780, 35782), (17891, 23560)]