18961290

素因数分解:

$2^1\times 3^8\times 5^1\times {\mathrm{17}}^2$

素因数の和:65

約数の個数: 108

約数和(自身を含む): 54381366

約数和(自身を除く): 35420076

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 243, 255, 270, 289, 306, 405, 459, 486, 510, 578, 729, 765, 810, 867, 918, 1215, 1377, 1445, 1458, 1530, 1734, 2187, 2295, 2430, 2601, 2754, 2890, 3645, 4131, 4335, 4374, 4590, 5202, 6561, 6885, 7290, 7803, 8262, 8670, 10935, 12393, 13005, 13122, 13770, 15606, 20655, 21870, 23409, 24786, 26010, 32805, 37179, 39015, 41310, 46818, 61965, 65610, 70227, 74358, 78030, 111537, 117045, 123930, 140454, 185895, 210681, 223074, 234090, 351135, 371790, 421362, 557685, 632043, 702270, 1053405, 1115370, 1264086, 1896129, 2106810, 3160215, 3792258, 6320430, 9480645, 18961290]

約数ペア:

[(1, 18961290), (2, 9480645), (3, 6320430), (5, 3792258), (6, 3160215), (9, 2106810), (10, 1896129), (15, 1264086), (17, 1115370), (18, 1053405), (27, 702270), (30, 632043), (34, 557685), (45, 421362), (51, 371790), (54, 351135), (81, 234090), (85, 223074), (90, 210681), (102, 185895), (135, 140454), (153, 123930), (162, 117045), (170, 111537), (243, 78030), (255, 74358), (270, 70227), (289, 65610), (306, 61965), (405, 46818), (459, 41310), (486, 39015), (510, 37179), (578, 32805), (729, 26010), (765, 24786), (810, 23409), (867, 21870), (918, 20655), (1215, 15606), (1377, 13770), (1445, 13122), (1458, 13005), (1530, 12393), (1734, 10935), (2187, 8670), (2295, 8262), (2430, 7803), (2601, 7290), (2754, 6885), (2890, 6561), (3645, 5202), (4131, 4590), (4335, 4374)]