28246540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 76416480

約数和(自身を除く): 48169940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 37, 38, 41, 49, 70, 74, 76, 82, 95, 98, 133, 140, 148, 164, 185, 190, 196, 205, 245, 259, 266, 287, 370, 380, 410, 490, 518, 532, 574, 665, 703, 740, 779, 820, 931, 980, 1036, 1148, 1295, 1330, 1406, 1435, 1517, 1558, 1813, 1862, 2009, 2590, 2660, 2812, 2870, 3034, 3116, 3515, 3626, 3724, 3895, 4018, 4655, 4921, 5180, 5453, 5740, 6068, 7030, 7252, 7585, 7790, 8036, 9065, 9310, 9842, 10045, 10619, 10906, 14060, 15170, 15580, 18130, 18620, 19684, 20090, 21238, 21812, 24605, 27265, 28823, 30340, 34447, 36260, 38171, 40180, 42476, 49210, 53095, 54530, 57646, 68894, 74333, 76342, 98420, 106190, 109060, 115292, 137788, 144115, 148666, 152684, 172235, 190855, 201761, 212380, 288230, 297332, 344470, 371665, 381710, 403522, 576460, 688940, 743330, 763420, 807044, 1008805, 1412327, 1486660, 2017610, 2824654, 4035220, 5649308, 7061635, 14123270, 28246540]

約数ペア:

[(1, 28246540), (2, 14123270), (4, 7061635), (5, 5649308), (7, 4035220), (10, 2824654), (14, 2017610), (19, 1486660), (20, 1412327), (28, 1008805), (35, 807044), (37, 763420), (38, 743330), (41, 688940), (49, 576460), (70, 403522), (74, 381710), (76, 371665), (82, 344470), (95, 297332), (98, 288230), (133, 212380), (140, 201761), (148, 190855), (164, 172235), (185, 152684), (190, 148666), (196, 144115), (205, 137788), (245, 115292), (259, 109060), (266, 106190), (287, 98420), (370, 76342), (380, 74333), (410, 68894), (490, 57646), (518, 54530), (532, 53095), (574, 49210), (665, 42476), (703, 40180), (740, 38171), (779, 36260), (820, 34447), (931, 30340), (980, 28823), (1036, 27265), (1148, 24605), (1295, 21812), (1330, 21238), (1406, 20090), (1435, 19684), (1517, 18620), (1558, 18130), (1813, 15580), (1862, 15170), (2009, 14060), (2590, 10906), (2660, 10619), (2812, 10045), (2870, 9842), (3034, 9310), (3116, 9065), (3515, 8036), (3626, 7790), (3724, 7585), (3895, 7252), (4018, 7030), (4655, 6068), (4921, 5740), (5180, 5453)]