20796760920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2719}}^1\times {\mathrm{4903}}^1$

素因数の和:7649

約数の個数: 128

約数和(自身を含む): 67227955200

約数和(自身を除く): 46431194280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 2719, 4903, 5438, 8157, 9806, 10876, 13595, 14709, 16314, 19612, 21752, 24515, 27190, 29418, 32628, 35347, 39224, 40785, 49030, 54380, 58836, 63739, 65256, 70694, 73545, 81570, 98060, 106041, 108760, 117672, 127478, 141388, 147090, 163140, 176735, 191217, 196120, 212082, 254956, 282776, 294180, 318695, 326280, 353470, 382434, 424164, 509912, 530205, 588360, 637390, 706940, 764868, 848328, 956085, 1060410, 1274780, 1413880, 1529736, 1912170, 2120820, 2549560, 3824340, 4241640, 7648680, 13331257, 26662514, 39993771, 53325028, 66656285, 79987542, 106650056, 133312570, 159975084, 173306341, 199968855, 266625140, 319950168, 346612682, 399937710, 519919023, 533250280, 693225364, 799875420, 866531705, 1039838046, 1386450728, 1599750840, 1733063410, 2079676092, 2599595115, 3466126820, 4159352184, 5199190230, 6932253640, 10398380460, 20796760920]

約数ペア:

[(1, 20796760920), (2, 10398380460), (3, 6932253640), (4, 5199190230), (5, 4159352184), (6, 3466126820), (8, 2599595115), (10, 2079676092), (12, 1733063410), (13, 1599750840), (15, 1386450728), (20, 1039838046), (24, 866531705), (26, 799875420), (30, 693225364), (39, 533250280), (40, 519919023), (52, 399937710), (60, 346612682), (65, 319950168), (78, 266625140), (104, 199968855), (120, 173306341), (130, 159975084), (156, 133312570), (195, 106650056), (260, 79987542), (312, 66656285), (390, 53325028), (520, 39993771), (780, 26662514), (1560, 13331257), (2719, 7648680), (4903, 4241640), (5438, 3824340), (8157, 2549560), (9806, 2120820), (10876, 1912170), (13595, 1529736), (14709, 1413880), (16314, 1274780), (19612, 1060410), (21752, 956085), (24515, 848328), (27190, 764868), (29418, 706940), (32628, 637390), (35347, 588360), (39224, 530205), (40785, 509912), (49030, 424164), (54380, 382434), (58836, 353470), (63739, 326280), (65256, 318695), (70694, 294180), (73545, 282776), (81570, 254956), (98060, 212082), (106041, 196120), (108760, 191217), (117672, 176735), (127478, 163140), (141388, 147090)]