20256390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 192

約数和(自身を含む): 68290560

約数和(自身を除く): 48034170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 37, 42, 45, 55, 63, 66, 70, 74, 77, 79, 90, 99, 105, 110, 111, 126, 154, 158, 165, 185, 198, 210, 222, 231, 237, 259, 315, 330, 333, 370, 385, 395, 407, 462, 474, 495, 518, 553, 555, 630, 666, 693, 711, 770, 777, 790, 814, 869, 990, 1106, 1110, 1155, 1185, 1221, 1295, 1386, 1422, 1554, 1659, 1665, 1738, 2035, 2310, 2331, 2370, 2442, 2590, 2607, 2765, 2849, 2923, 3318, 3330, 3465, 3555, 3663, 3885, 4070, 4345, 4662, 4977, 5214, 5530, 5698, 5846, 6083, 6105, 6930, 7110, 7326, 7770, 7821, 8295, 8547, 8690, 8769, 9954, 11655, 12166, 12210, 13035, 14245, 14615, 15642, 16590, 17094, 17538, 18249, 18315, 20461, 23310, 24885, 25641, 26070, 26307, 28490, 29230, 30415, 32153, 36498, 36630, 39105, 40922, 42735, 43845, 49770, 51282, 52614, 54747, 60830, 61383, 64306, 78210, 85470, 87690, 91245, 96459, 102305, 109494, 122766, 128205, 131535, 160765, 182490, 184149, 192918, 204610, 225071, 256410, 263070, 273735, 289377, 306915, 321530, 368298, 450142, 482295, 547470, 578754, 613830, 675213, 920745, 964590, 1125355, 1350426, 1446885, 1841490, 2025639, 2250710, 2893770, 3376065, 4051278, 6752130, 10128195, 20256390]

約数ペア:

[(1, 20256390), (2, 10128195), (3, 6752130), (5, 4051278), (6, 3376065), (7, 2893770), (9, 2250710), (10, 2025639), (11, 1841490), (14, 1446885), (15, 1350426), (18, 1125355), (21, 964590), (22, 920745), (30, 675213), (33, 613830), (35, 578754), (37, 547470), (42, 482295), (45, 450142), (55, 368298), (63, 321530), (66, 306915), (70, 289377), (74, 273735), (77, 263070), (79, 256410), (90, 225071), (99, 204610), (105, 192918), (110, 184149), (111, 182490), (126, 160765), (154, 131535), (158, 128205), (165, 122766), (185, 109494), (198, 102305), (210, 96459), (222, 91245), (231, 87690), (237, 85470), (259, 78210), (315, 64306), (330, 61383), (333, 60830), (370, 54747), (385, 52614), (395, 51282), (407, 49770), (462, 43845), (474, 42735), (495, 40922), (518, 39105), (553, 36630), (555, 36498), (630, 32153), (666, 30415), (693, 29230), (711, 28490), (770, 26307), (777, 26070), (790, 25641), (814, 24885), (869, 23310), (990, 20461), (1106, 18315), (1110, 18249), (1155, 17538), (1185, 17094), (1221, 16590), (1295, 15642), (1386, 14615), (1422, 14245), (1554, 13035), (1659, 12210), (1665, 12166), (1738, 11655), (2035, 9954), (2310, 8769), (2331, 8690), (2370, 8547), (2442, 8295), (2590, 7821), (2607, 7770), (2765, 7326), (2849, 7110), (2923, 6930), (3318, 6105), (3330, 6083), (3465, 5846), (3555, 5698), (3663, 5530), (3885, 5214), (4070, 4977), (4345, 4662)]