28260375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 128

約数和(自身を含む): 60383232

約数和(自身を除く): 32122857

約数列:

[1, 3, 5, 11, 13, 15, 17, 25, 31, 33, 39, 51, 55, 65, 75, 85, 93, 125, 143, 155, 165, 187, 195, 221, 255, 275, 325, 341, 375, 403, 425, 429, 465, 527, 561, 663, 715, 775, 825, 935, 975, 1023, 1105, 1209, 1275, 1375, 1581, 1625, 1705, 2015, 2125, 2145, 2325, 2431, 2635, 2805, 3315, 3575, 3875, 4125, 4433, 4675, 4875, 5115, 5525, 5797, 6045, 6375, 6851, 7293, 7905, 8525, 10075, 10725, 11625, 12155, 13175, 13299, 14025, 16575, 17391, 17875, 20553, 22165, 23375, 25575, 27625, 28985, 30225, 34255, 36465, 39525, 42625, 50375, 53625, 60775, 65875, 66495, 70125, 75361, 82875, 86955, 102765, 110825, 127875, 144925, 151125, 171275, 182325, 197625, 226083, 303875, 332475, 376805, 434775, 513825, 554125, 724625, 856375, 911625, 1130415, 1662375, 1884025, 2173875, 2569125, 5652075, 9420125, 28260375]

約数ペア:

[(1, 28260375), (3, 9420125), (5, 5652075), (11, 2569125), (13, 2173875), (15, 1884025), (17, 1662375), (25, 1130415), (31, 911625), (33, 856375), (39, 724625), (51, 554125), (55, 513825), (65, 434775), (75, 376805), (85, 332475), (93, 303875), (125, 226083), (143, 197625), (155, 182325), (165, 171275), (187, 151125), (195, 144925), (221, 127875), (255, 110825), (275, 102765), (325, 86955), (341, 82875), (375, 75361), (403, 70125), (425, 66495), (429, 65875), (465, 60775), (527, 53625), (561, 50375), (663, 42625), (715, 39525), (775, 36465), (825, 34255), (935, 30225), (975, 28985), (1023, 27625), (1105, 25575), (1209, 23375), (1275, 22165), (1375, 20553), (1581, 17875), (1625, 17391), (1705, 16575), (2015, 14025), (2125, 13299), (2145, 13175), (2325, 12155), (2431, 11625), (2635, 10725), (2805, 10075), (3315, 8525), (3575, 7905), (3875, 7293), (4125, 6851), (4433, 6375), (4675, 6045), (4875, 5797), (5115, 5525)]