28831140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2$

素因数の和:108

約数の個数: 180

約数和(自身を含む): 100105236

約数和(自身を除く): 71274096

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 37, 39, 45, 52, 54, 60, 65, 74, 78, 81, 90, 108, 111, 117, 130, 135, 148, 156, 162, 180, 185, 195, 222, 234, 260, 270, 324, 333, 351, 370, 390, 405, 444, 468, 481, 540, 555, 585, 666, 702, 740, 780, 810, 962, 999, 1053, 1110, 1170, 1332, 1369, 1404, 1443, 1620, 1665, 1755, 1924, 1998, 2106, 2220, 2340, 2405, 2738, 2886, 2997, 3330, 3510, 3996, 4107, 4212, 4329, 4810, 4995, 5265, 5476, 5772, 5994, 6660, 6845, 7020, 7215, 8214, 8658, 9620, 9990, 10530, 11988, 12321, 12987, 13690, 14430, 14985, 16428, 17316, 17797, 19980, 20535, 21060, 21645, 24642, 25974, 27380, 28860, 29970, 35594, 36963, 38961, 41070, 43290, 49284, 51948, 53391, 59940, 61605, 64935, 71188, 73926, 77922, 82140, 86580, 88985, 106782, 110889, 123210, 129870, 147852, 155844, 160173, 177970, 184815, 194805, 213564, 221778, 246420, 259740, 266955, 320346, 355940, 369630, 389610, 443556, 480519, 533910, 554445, 640692, 739260, 779220, 800865, 961038, 1067820, 1108890, 1441557, 1601730, 1922076, 2217780, 2402595, 2883114, 3203460, 4805190, 5766228, 7207785, 9610380, 14415570, 28831140]

約数ペア:

[(1, 28831140), (2, 14415570), (3, 9610380), (4, 7207785), (5, 5766228), (6, 4805190), (9, 3203460), (10, 2883114), (12, 2402595), (13, 2217780), (15, 1922076), (18, 1601730), (20, 1441557), (26, 1108890), (27, 1067820), (30, 961038), (36, 800865), (37, 779220), (39, 739260), (45, 640692), (52, 554445), (54, 533910), (60, 480519), (65, 443556), (74, 389610), (78, 369630), (81, 355940), (90, 320346), (108, 266955), (111, 259740), (117, 246420), (130, 221778), (135, 213564), (148, 194805), (156, 184815), (162, 177970), (180, 160173), (185, 155844), (195, 147852), (222, 129870), (234, 123210), (260, 110889), (270, 106782), (324, 88985), (333, 86580), (351, 82140), (370, 77922), (390, 73926), (405, 71188), (444, 64935), (468, 61605), (481, 59940), (540, 53391), (555, 51948), (585, 49284), (666, 43290), (702, 41070), (740, 38961), (780, 36963), (810, 35594), (962, 29970), (999, 28860), (1053, 27380), (1110, 25974), (1170, 24642), (1332, 21645), (1369, 21060), (1404, 20535), (1443, 19980), (1620, 17797), (1665, 17316), (1755, 16428), (1924, 14985), (1998, 14430), (2106, 13690), (2220, 12987), (2340, 12321), (2405, 11988), (2738, 10530), (2886, 9990), (2997, 9620), (3330, 8658), (3510, 8214), (3996, 7215), (4107, 7020), (4212, 6845), (4329, 6660), (4810, 5994), (4995, 5772), (5265, 5476)]