216557900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 551214720

約数和(自身を除く): 334656820

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 41, 50, 52, 65, 68, 82, 85, 100, 130, 164, 170, 205, 221, 239, 260, 325, 340, 410, 425, 442, 478, 533, 650, 697, 820, 850, 884, 956, 1025, 1066, 1105, 1195, 1300, 1394, 1700, 2050, 2132, 2210, 2390, 2665, 2788, 3107, 3485, 4063, 4100, 4420, 4780, 5330, 5525, 5975, 6214, 6970, 8126, 9061, 9799, 10660, 11050, 11950, 12428, 13325, 13940, 15535, 16252, 17425, 18122, 19598, 20315, 22100, 23900, 26650, 31070, 34850, 36244, 39196, 40630, 45305, 48995, 52819, 53300, 62140, 69700, 77675, 81260, 90610, 97990, 101575, 105638, 127387, 155350, 166583, 181220, 195980, 203150, 211276, 226525, 244975, 254774, 264095, 310700, 333166, 406300, 453050, 489950, 509548, 528190, 636935, 666332, 832915, 906100, 979900, 1056380, 1273870, 1320475, 1665830, 2165579, 2547740, 2640950, 3184675, 3331660, 4164575, 4331158, 5281900, 6369350, 8329150, 8662316, 10827895, 12738700, 16658300, 21655790, 43311580, 54139475, 108278950, 216557900]

約数ペア:

[(1, 216557900), (2, 108278950), (4, 54139475), (5, 43311580), (10, 21655790), (13, 16658300), (17, 12738700), (20, 10827895), (25, 8662316), (26, 8329150), (34, 6369350), (41, 5281900), (50, 4331158), (52, 4164575), (65, 3331660), (68, 3184675), (82, 2640950), (85, 2547740), (100, 2165579), (130, 1665830), (164, 1320475), (170, 1273870), (205, 1056380), (221, 979900), (239, 906100), (260, 832915), (325, 666332), (340, 636935), (410, 528190), (425, 509548), (442, 489950), (478, 453050), (533, 406300), (650, 333166), (697, 310700), (820, 264095), (850, 254774), (884, 244975), (956, 226525), (1025, 211276), (1066, 203150), (1105, 195980), (1195, 181220), (1300, 166583), (1394, 155350), (1700, 127387), (2050, 105638), (2132, 101575), (2210, 97990), (2390, 90610), (2665, 81260), (2788, 77675), (3107, 69700), (3485, 62140), (4063, 53300), (4100, 52819), (4420, 48995), (4780, 45305), (5330, 40630), (5525, 39196), (5975, 36244), (6214, 34850), (6970, 31070), (8126, 26650), (9061, 23900), (9799, 22100), (10660, 20315), (11050, 19598), (11950, 18122), (12428, 17425), (13325, 16252), (13940, 15535)]