28546740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:542

約数の個数: 144

約数和(自身を含む): 96707520

約数和(自身を除く): 68160780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 491, 510, 570, 612, 646, 684, 765, 855, 969, 982, 1020, 1140, 1292, 1473, 1530, 1615, 1710, 1938, 1964, 2455, 2907, 2946, 3060, 3230, 3420, 3876, 4419, 4845, 4910, 5814, 5892, 6460, 7365, 8347, 8838, 9329, 9690, 9820, 11628, 14535, 14730, 16694, 17676, 18658, 19380, 22095, 25041, 27987, 29070, 29460, 33388, 37316, 41735, 44190, 46645, 50082, 55974, 58140, 75123, 83470, 83961, 88380, 93290, 100164, 111948, 125205, 139935, 150246, 158593, 166940, 167922, 186580, 250410, 279870, 300492, 317186, 335844, 375615, 419805, 475779, 500820, 559740, 634372, 751230, 792965, 839610, 951558, 1427337, 1502460, 1585930, 1679220, 1903116, 2378895, 2854674, 3171860, 4757790, 5709348, 7136685, 9515580, 14273370, 28546740]

約数ペア:

[(1, 28546740), (2, 14273370), (3, 9515580), (4, 7136685), (5, 5709348), (6, 4757790), (9, 3171860), (10, 2854674), (12, 2378895), (15, 1903116), (17, 1679220), (18, 1585930), (19, 1502460), (20, 1427337), (30, 951558), (34, 839610), (36, 792965), (38, 751230), (45, 634372), (51, 559740), (57, 500820), (60, 475779), (68, 419805), (76, 375615), (85, 335844), (90, 317186), (95, 300492), (102, 279870), (114, 250410), (153, 186580), (170, 167922), (171, 166940), (180, 158593), (190, 150246), (204, 139935), (228, 125205), (255, 111948), (285, 100164), (306, 93290), (323, 88380), (340, 83961), (342, 83470), (380, 75123), (491, 58140), (510, 55974), (570, 50082), (612, 46645), (646, 44190), (684, 41735), (765, 37316), (855, 33388), (969, 29460), (982, 29070), (1020, 27987), (1140, 25041), (1292, 22095), (1473, 19380), (1530, 18658), (1615, 17676), (1710, 16694), (1938, 14730), (1964, 14535), (2455, 11628), (2907, 9820), (2946, 9690), (3060, 9329), (3230, 8838), (3420, 8347), (3876, 7365), (4419, 6460), (4845, 5892), (4910, 5814)]