20778930

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:542

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 38660814

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, 306, 405, 459, 486, 503, 510, 765, 810, 918, 1006, 1215, 1377, 1509, 1530, 2295, 2430, 2515, 2754, 3018, 4131, 4527, 4590, 5030, 6885, 7545, 8262, 8551, 9054, 13581, 13770, 15090, 17102, 20655, 22635, 25653, 27162, 40743, 41310, 42755, 45270, 51306, 67905, 76959, 81486, 85510, 122229, 128265, 135810, 153918, 203715, 230877, 244458, 256530, 384795, 407430, 461754, 611145, 692631, 769590, 1154385, 1222290, 1385262, 2077893, 2308770, 3463155, 4155786, 6926310, 10389465, 20778930]

約数ペア:

[(1, 20778930), (2, 10389465), (3, 6926310), (5, 4155786), (6, 3463155), (9, 2308770), (10, 2077893), (15, 1385262), (17, 1222290), (18, 1154385), (27, 769590), (30, 692631), (34, 611145), (45, 461754), (51, 407430), (54, 384795), (81, 256530), (85, 244458), (90, 230877), (102, 203715), (135, 153918), (153, 135810), (162, 128265), (170, 122229), (243, 85510), (255, 81486), (270, 76959), (306, 67905), (405, 51306), (459, 45270), (486, 42755), (503, 41310), (510, 40743), (765, 27162), (810, 25653), (918, 22635), (1006, 20655), (1215, 17102), (1377, 15090), (1509, 13770), (1530, 13581), (2295, 9054), (2430, 8551), (2515, 8262), (2754, 7545), (3018, 6885), (4131, 5030), (4527, 4590)]