19977210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1228

約数の個数: 96

約数和(自身を含む): 60046272

約数和(自身を除く): 40069062

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 30, 33, 34, 45, 51, 55, 66, 85, 90, 99, 102, 110, 153, 165, 170, 187, 198, 255, 306, 330, 374, 495, 510, 561, 765, 935, 990, 1122, 1187, 1530, 1683, 1870, 2374, 2805, 3366, 3561, 5610, 5935, 7122, 8415, 10683, 11870, 13057, 16830, 17805, 20179, 21366, 26114, 35610, 39171, 40358, 53415, 60537, 65285, 78342, 100895, 106830, 117513, 121074, 130570, 181611, 195855, 201790, 221969, 235026, 302685, 363222, 391710, 443938, 587565, 605370, 665907, 908055, 1109845, 1175130, 1331814, 1816110, 1997721, 2219690, 3329535, 3995442, 6659070, 9988605, 19977210]

約数ペア:

[(1, 19977210), (2, 9988605), (3, 6659070), (5, 3995442), (6, 3329535), (9, 2219690), (10, 1997721), (11, 1816110), (15, 1331814), (17, 1175130), (18, 1109845), (22, 908055), (30, 665907), (33, 605370), (34, 587565), (45, 443938), (51, 391710), (55, 363222), (66, 302685), (85, 235026), (90, 221969), (99, 201790), (102, 195855), (110, 181611), (153, 130570), (165, 121074), (170, 117513), (187, 106830), (198, 100895), (255, 78342), (306, 65285), (330, 60537), (374, 53415), (495, 40358), (510, 39171), (561, 35610), (765, 26114), (935, 21366), (990, 20179), (1122, 17805), (1187, 16830), (1530, 13057), (1683, 11870), (1870, 10683), (2374, 8415), (2805, 7122), (3366, 5935), (3561, 5610)]