259624540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 666144864

約数和(自身を除く): 406520324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 61, 70, 86, 98, 101, 122, 140, 172, 196, 202, 215, 244, 245, 301, 305, 404, 427, 430, 490, 505, 602, 610, 707, 854, 860, 980, 1010, 1204, 1220, 1414, 1505, 1708, 2020, 2107, 2135, 2623, 2828, 2989, 3010, 3535, 4214, 4270, 4343, 4949, 5246, 5978, 6020, 6161, 7070, 8428, 8540, 8686, 9898, 10492, 10535, 11956, 12322, 13115, 14140, 14945, 17372, 18361, 19796, 21070, 21715, 24644, 24745, 26230, 29890, 30401, 30805, 36722, 42140, 43127, 43430, 49490, 52460, 59780, 60802, 61610, 73444, 86254, 86860, 91805, 98980, 121604, 123220, 128527, 152005, 172508, 183610, 212807, 215635, 257054, 264923, 301889, 304010, 367220, 425614, 431270, 514108, 529846, 603778, 608020, 642635, 851228, 862540, 1059692, 1064035, 1207556, 1285270, 1324615, 1509445, 1854461, 2128070, 2570540, 2649230, 3018890, 3708922, 4256140, 5298460, 6037780, 7417844, 9272305, 12981227, 18544610, 25962454, 37089220, 51924908, 64906135, 129812270, 259624540]

約数ペア:

[(1, 259624540), (2, 129812270), (4, 64906135), (5, 51924908), (7, 37089220), (10, 25962454), (14, 18544610), (20, 12981227), (28, 9272305), (35, 7417844), (43, 6037780), (49, 5298460), (61, 4256140), (70, 3708922), (86, 3018890), (98, 2649230), (101, 2570540), (122, 2128070), (140, 1854461), (172, 1509445), (196, 1324615), (202, 1285270), (215, 1207556), (244, 1064035), (245, 1059692), (301, 862540), (305, 851228), (404, 642635), (427, 608020), (430, 603778), (490, 529846), (505, 514108), (602, 431270), (610, 425614), (707, 367220), (854, 304010), (860, 301889), (980, 264923), (1010, 257054), (1204, 215635), (1220, 212807), (1414, 183610), (1505, 172508), (1708, 152005), (2020, 128527), (2107, 123220), (2135, 121604), (2623, 98980), (2828, 91805), (2989, 86860), (3010, 86254), (3535, 73444), (4214, 61610), (4270, 60802), (4343, 59780), (4949, 52460), (5246, 49490), (5978, 43430), (6020, 43127), (6161, 42140), (7070, 36722), (8428, 30805), (8540, 30401), (8686, 29890), (9898, 26230), (10492, 24745), (10535, 24644), (11956, 21715), (12322, 21070), (13115, 19796), (14140, 18361), (14945, 17372)]