28015320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 92067840

約数和(自身を除く): 64052520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 443, 465, 510, 527, 620, 680, 744, 886, 930, 1020, 1054, 1240, 1329, 1581, 1772, 1860, 2040, 2108, 2215, 2635, 2658, 3162, 3544, 3720, 4216, 4430, 5270, 5316, 6324, 6645, 7531, 7905, 8860, 10540, 10632, 12648, 13290, 13733, 15062, 15810, 17720, 21080, 22593, 26580, 27466, 30124, 31620, 37655, 41199, 45186, 53160, 54932, 60248, 63240, 68665, 75310, 82398, 90372, 109864, 112965, 137330, 150620, 164796, 180744, 205995, 225930, 233461, 274660, 301240, 329592, 411990, 451860, 466922, 549320, 700383, 823980, 903720, 933844, 1167305, 1400766, 1647960, 1867688, 2334610, 2801532, 3501915, 4669220, 5603064, 7003830, 9338440, 14007660, 28015320]

約数ペア:

[(1, 28015320), (2, 14007660), (3, 9338440), (4, 7003830), (5, 5603064), (6, 4669220), (8, 3501915), (10, 2801532), (12, 2334610), (15, 1867688), (17, 1647960), (20, 1400766), (24, 1167305), (30, 933844), (31, 903720), (34, 823980), (40, 700383), (51, 549320), (60, 466922), (62, 451860), (68, 411990), (85, 329592), (93, 301240), (102, 274660), (120, 233461), (124, 225930), (136, 205995), (155, 180744), (170, 164796), (186, 150620), (204, 137330), (248, 112965), (255, 109864), (310, 90372), (340, 82398), (372, 75310), (408, 68665), (443, 63240), (465, 60248), (510, 54932), (527, 53160), (620, 45186), (680, 41199), (744, 37655), (886, 31620), (930, 30124), (1020, 27466), (1054, 26580), (1240, 22593), (1329, 21080), (1581, 17720), (1772, 15810), (1860, 15062), (2040, 13733), (2108, 13290), (2215, 12648), (2635, 10632), (2658, 10540), (3162, 8860), (3544, 7905), (3720, 7531), (4216, 6645), (4430, 6324), (5270, 5316)]