221743620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:871

約数の個数: 216

約数和(自身を含む): 808674048

約数和(自身を除く): 586930428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 735, 811, 868, 882, 930, 980, 1085, 1116, 1260, 1302, 1395, 1470, 1519, 1622, 1764, 1860, 1953, 2170, 2205, 2433, 2604, 2790, 2940, 3038, 3244, 3255, 3906, 4055, 4340, 4410, 4557, 4866, 5580, 5677, 6076, 6510, 7299, 7595, 7812, 8110, 8820, 9114, 9732, 9765, 11354, 12165, 13020, 13671, 14598, 15190, 16220, 17031, 18228, 19530, 22708, 22785, 24330, 25141, 27342, 28385, 29196, 30380, 34062, 36495, 39060, 39739, 45570, 48660, 50282, 51093, 54684, 56770, 68124, 68355, 72990, 75423, 79478, 85155, 91140, 100564, 102186, 113540, 119217, 125705, 136710, 145980, 150846, 158956, 170310, 175987, 198695, 204372, 226269, 238434, 251410, 255465, 273420, 301692, 340620, 351974, 357651, 377115, 397390, 452538, 476868, 502820, 510930, 527961, 596085, 703948, 715302, 754230, 794780, 879935, 905076, 1021860, 1055922, 1131345, 1192170, 1231909, 1430604, 1508460, 1583883, 1759870, 1788255, 2111844, 2262690, 2384340, 2463818, 2639805, 3167766, 3519740, 3576510, 3695727, 4525380, 4927636, 5279610, 6159545, 6335532, 7153020, 7391454, 7919415, 10559220, 11087181, 12319090, 14782908, 15838830, 18478635, 22174362, 24638180, 31677660, 36957270, 44348724, 55435905, 73914540, 110871810, 221743620]

約数ペア:

[(1, 221743620), (2, 110871810), (3, 73914540), (4, 55435905), (5, 44348724), (6, 36957270), (7, 31677660), (9, 24638180), (10, 22174362), (12, 18478635), (14, 15838830), (15, 14782908), (18, 12319090), (20, 11087181), (21, 10559220), (28, 7919415), (30, 7391454), (31, 7153020), (35, 6335532), (36, 6159545), (42, 5279610), (45, 4927636), (49, 4525380), (60, 3695727), (62, 3576510), (63, 3519740), (70, 3167766), (84, 2639805), (90, 2463818), (93, 2384340), (98, 2262690), (105, 2111844), (124, 1788255), (126, 1759870), (140, 1583883), (147, 1508460), (155, 1430604), (180, 1231909), (186, 1192170), (196, 1131345), (210, 1055922), (217, 1021860), (245, 905076), (252, 879935), (279, 794780), (294, 754230), (310, 715302), (315, 703948), (372, 596085), (420, 527961), (434, 510930), (441, 502820), (465, 476868), (490, 452538), (558, 397390), (588, 377115), (620, 357651), (630, 351974), (651, 340620), (735, 301692), (811, 273420), (868, 255465), (882, 251410), (930, 238434), (980, 226269), (1085, 204372), (1116, 198695), (1260, 175987), (1302, 170310), (1395, 158956), (1470, 150846), (1519, 145980), (1622, 136710), (1764, 125705), (1860, 119217), (1953, 113540), (2170, 102186), (2205, 100564), (2433, 91140), (2604, 85155), (2790, 79478), (2940, 75423), (3038, 72990), (3244, 68355), (3255, 68124), (3906, 56770), (4055, 54684), (4340, 51093), (4410, 50282), (4557, 48660), (4866, 45570), (5580, 39739), (5677, 39060), (6076, 36495), (6510, 34062), (7299, 30380), (7595, 29196), (7812, 28385), (8110, 27342), (8820, 25141), (9114, 24330), (9732, 22785), (9765, 22708), (11354, 19530), (12165, 18228), (13020, 17031), (13671, 16220), (14598, 15190)]