20544840

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:413

約数の個数: 160

約数和(自身を含む): 73311480

約数和(自身を除く): 52766640

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, 373, 405, 408, 459, 510, 540, 612, 648, 680, 746, 765, 810, 918, 1020, 1080, 1119, 1224, 1377, 1492, 1530, 1620, 1836, 1865, 2040, 2238, 2295, 2754, 2984, 3060, 3240, 3357, 3672, 3730, 4476, 4590, 5508, 5595, 6120, 6341, 6714, 6885, 7460, 8952, 9180, 10071, 11016, 11190, 12682, 13428, 13770, 14920, 16785, 18360, 19023, 20142, 22380, 25364, 26856, 27540, 30213, 31705, 33570, 38046, 40284, 44760, 50355, 50728, 55080, 57069, 60426, 63410, 67140, 76092, 80568, 95115, 100710, 114138, 120852, 126820, 134280, 151065, 152184, 171207, 190230, 201420, 228276, 241704, 253640, 285345, 302130, 342414, 380460, 402840, 456552, 513621, 570690, 604260, 684828, 760920, 856035, 1027242, 1141380, 1208520, 1369656, 1712070, 2054484, 2282760, 2568105, 3424140, 4108968, 5136210, 6848280, 10272420, 20544840]

約数ペア:

[(1, 20544840), (2, 10272420), (3, 6848280), (4, 5136210), (5, 4108968), (6, 3424140), (8, 2568105), (9, 2282760), (10, 2054484), (12, 1712070), (15, 1369656), (17, 1208520), (18, 1141380), (20, 1027242), (24, 856035), (27, 760920), (30, 684828), (34, 604260), (36, 570690), (40, 513621), (45, 456552), (51, 402840), (54, 380460), (60, 342414), (68, 302130), (72, 285345), (81, 253640), (85, 241704), (90, 228276), (102, 201420), (108, 190230), (120, 171207), (135, 152184), (136, 151065), (153, 134280), (162, 126820), (170, 120852), (180, 114138), (204, 100710), (216, 95115), (255, 80568), (270, 76092), (306, 67140), (324, 63410), (340, 60426), (360, 57069), (373, 55080), (405, 50728), (408, 50355), (459, 44760), (510, 40284), (540, 38046), (612, 33570), (648, 31705), (680, 30213), (746, 27540), (765, 26856), (810, 25364), (918, 22380), (1020, 20142), (1080, 19023), (1119, 18360), (1224, 16785), (1377, 14920), (1492, 13770), (1530, 13428), (1620, 12682), (1836, 11190), (1865, 11016), (2040, 10071), (2238, 9180), (2295, 8952), (2754, 7460), (2984, 6885), (3060, 6714), (3240, 6341), (3357, 6120), (3672, 5595), (3730, 5508), (4476, 4590)]