28696680

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 160

約数和(自身を含む): 102322440

約数和(自身を除く): 73625760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 255, 270, 306, 324, 340, 360, 405, 408, 459, 510, 521, 540, 612, 648, 680, 765, 810, 918, 1020, 1042, 1080, 1224, 1377, 1530, 1563, 1620, 1836, 2040, 2084, 2295, 2605, 2754, 3060, 3126, 3240, 3672, 4168, 4590, 4689, 5210, 5508, 6120, 6252, 6885, 7815, 8857, 9180, 9378, 10420, 11016, 12504, 13770, 14067, 15630, 17714, 18360, 18756, 20840, 23445, 26571, 27540, 28134, 31260, 35428, 37512, 42201, 44285, 46890, 53142, 55080, 56268, 62520, 70335, 70856, 79713, 84402, 88570, 93780, 106284, 112536, 132855, 140670, 159426, 168804, 177140, 187560, 211005, 212568, 239139, 265710, 281340, 318852, 337608, 354280, 398565, 422010, 478278, 531420, 562680, 637704, 717417, 797130, 844020, 956556, 1062840, 1195695, 1434834, 1594260, 1688040, 1913112, 2391390, 2869668, 3188520, 3587085, 4782780, 5739336, 7174170, 9565560, 14348340, 28696680]

約数ペア:

[(1, 28696680), (2, 14348340), (3, 9565560), (4, 7174170), (5, 5739336), (6, 4782780), (8, 3587085), (9, 3188520), (10, 2869668), (12, 2391390), (15, 1913112), (17, 1688040), (18, 1594260), (20, 1434834), (24, 1195695), (27, 1062840), (30, 956556), (34, 844020), (36, 797130), (40, 717417), (45, 637704), (51, 562680), (54, 531420), (60, 478278), (68, 422010), (72, 398565), (81, 354280), (85, 337608), (90, 318852), (102, 281340), (108, 265710), (120, 239139), (135, 212568), (136, 211005), (153, 187560), (162, 177140), (170, 168804), (180, 159426), (204, 140670), (216, 132855), (255, 112536), (270, 106284), (306, 93780), (324, 88570), (340, 84402), (360, 79713), (405, 70856), (408, 70335), (459, 62520), (510, 56268), (521, 55080), (540, 53142), (612, 46890), (648, 44285), (680, 42201), (765, 37512), (810, 35428), (918, 31260), (1020, 28134), (1042, 27540), (1080, 26571), (1224, 23445), (1377, 20840), (1530, 18756), (1563, 18360), (1620, 17714), (1836, 15630), (2040, 14067), (2084, 13770), (2295, 12504), (2605, 11016), (2754, 10420), (3060, 9378), (3126, 9180), (3240, 8857), (3672, 7815), (4168, 6885), (4590, 6252), (4689, 6120), (5210, 5508)]