81568890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1367}}^1$

素因数の和:1413

約数の個数: 128

約数和(自身を含む): 248209920

約数和(自身を除く): 166641030

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 27, 30, 34, 39, 45, 51, 54, 65, 78, 85, 90, 102, 117, 130, 135, 153, 170, 195, 221, 234, 255, 270, 306, 351, 390, 442, 459, 510, 585, 663, 702, 765, 918, 1105, 1170, 1326, 1367, 1530, 1755, 1989, 2210, 2295, 2734, 3315, 3510, 3978, 4101, 4590, 5967, 6630, 6835, 8202, 9945, 11934, 12303, 13670, 17771, 19890, 20505, 23239, 24606, 29835, 35542, 36909, 41010, 46478, 53313, 59670, 61515, 69717, 73818, 88855, 106626, 116195, 123030, 139434, 159939, 177710, 184545, 209151, 232390, 266565, 302107, 319878, 348585, 369090, 418302, 479817, 533130, 604214, 627453, 697170, 799695, 906321, 959634, 1045755, 1254906, 1510535, 1599390, 1812642, 2091510, 2399085, 2718963, 3021070, 3137265, 4531605, 4798170, 5437926, 6274530, 8156889, 9063210, 13594815, 16313778, 27189630, 40784445, 81568890]

約数ペア:

[(1, 81568890), (2, 40784445), (3, 27189630), (5, 16313778), (6, 13594815), (9, 9063210), (10, 8156889), (13, 6274530), (15, 5437926), (17, 4798170), (18, 4531605), (26, 3137265), (27, 3021070), (30, 2718963), (34, 2399085), (39, 2091510), (45, 1812642), (51, 1599390), (54, 1510535), (65, 1254906), (78, 1045755), (85, 959634), (90, 906321), (102, 799695), (117, 697170), (130, 627453), (135, 604214), (153, 533130), (170, 479817), (195, 418302), (221, 369090), (234, 348585), (255, 319878), (270, 302107), (306, 266565), (351, 232390), (390, 209151), (442, 184545), (459, 177710), (510, 159939), (585, 139434), (663, 123030), (702, 116195), (765, 106626), (918, 88855), (1105, 73818), (1170, 69717), (1326, 61515), (1367, 59670), (1530, 53313), (1755, 46478), (1989, 41010), (2210, 36909), (2295, 35542), (2734, 29835), (3315, 24606), (3510, 23239), (3978, 20505), (4101, 19890), (4590, 17771), (5967, 13670), (6630, 12303), (6835, 11934), (8202, 9945)]