209547780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15803}}^1$

素因数の和:15845

約数の個数: 96

約数和(自身を含む): 669078144

約数和(自身を除く): 459530364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 15803, 31606, 47409, 63212, 79015, 94818, 158030, 189636, 205439, 237045, 268651, 316060, 410878, 474090, 537302, 616317, 805953, 821756, 948180, 1027195, 1074604, 1232634, 1343255, 1611906, 2054390, 2465268, 2686510, 3081585, 3223812, 3492463, 4029765, 4108780, 5373020, 6163170, 6984926, 8059530, 10477389, 12326340, 13969852, 16119060, 17462315, 20954778, 34924630, 41909556, 52386945, 69849260, 104773890, 209547780]

約数ペア:

[(1, 209547780), (2, 104773890), (3, 69849260), (4, 52386945), (5, 41909556), (6, 34924630), (10, 20954778), (12, 17462315), (13, 16119060), (15, 13969852), (17, 12326340), (20, 10477389), (26, 8059530), (30, 6984926), (34, 6163170), (39, 5373020), (51, 4108780), (52, 4029765), (60, 3492463), (65, 3223812), (68, 3081585), (78, 2686510), (85, 2465268), (102, 2054390), (130, 1611906), (156, 1343255), (170, 1232634), (195, 1074604), (204, 1027195), (221, 948180), (255, 821756), (260, 805953), (340, 616317), (390, 537302), (442, 474090), (510, 410878), (663, 316060), (780, 268651), (884, 237045), (1020, 205439), (1105, 189636), (1326, 158030), (2210, 94818), (2652, 79015), (3315, 63212), (4420, 47409), (6630, 31606), (13260, 15803)]