20399490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:296

約数の個数: 96

約数和(自身を含む): 57283200

約数和(自身を除く): 36883710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 67, 85, 90, 102, 134, 153, 170, 199, 201, 255, 306, 335, 398, 402, 510, 597, 603, 670, 765, 995, 1005, 1139, 1194, 1206, 1530, 1791, 1990, 2010, 2278, 2985, 3015, 3383, 3417, 3582, 5695, 5970, 6030, 6766, 6834, 8955, 10149, 10251, 11390, 13333, 16915, 17085, 17910, 20298, 20502, 26666, 30447, 33830, 34170, 39999, 50745, 51255, 60894, 66665, 79998, 101490, 102510, 119997, 133330, 152235, 199995, 226661, 239994, 304470, 399990, 453322, 599985, 679983, 1133305, 1199970, 1359966, 2039949, 2266610, 3399915, 4079898, 6799830, 10199745, 20399490]

約数ペア:

[(1, 20399490), (2, 10199745), (3, 6799830), (5, 4079898), (6, 3399915), (9, 2266610), (10, 2039949), (15, 1359966), (17, 1199970), (18, 1133305), (30, 679983), (34, 599985), (45, 453322), (51, 399990), (67, 304470), (85, 239994), (90, 226661), (102, 199995), (134, 152235), (153, 133330), (170, 119997), (199, 102510), (201, 101490), (255, 79998), (306, 66665), (335, 60894), (398, 51255), (402, 50745), (510, 39999), (597, 34170), (603, 33830), (670, 30447), (765, 26666), (995, 20502), (1005, 20298), (1139, 17910), (1194, 17085), (1206, 16915), (1530, 13333), (1791, 11390), (1990, 10251), (2010, 10149), (2278, 8955), (2985, 6834), (3015, 6766), (3383, 6030), (3417, 5970), (3582, 5695)]