71440740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 260245440

約数和(自身を除く): 188804700

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, 59, 60, 62, 63, 70, 84, 90, 93, 105, 118, 124, 126, 140, 155, 177, 180, 186, 210, 217, 236, 252, 279, 295, 310, 315, 354, 372, 413, 420, 434, 465, 531, 558, 590, 620, 630, 651, 708, 826, 868, 885, 930, 961, 1062, 1085, 1116, 1180, 1239, 1260, 1302, 1395, 1652, 1770, 1829, 1860, 1922, 1953, 2065, 2124, 2170, 2478, 2604, 2655, 2790, 2883, 3255, 3540, 3658, 3717, 3844, 3906, 4130, 4340, 4805, 4956, 5310, 5487, 5580, 5766, 6195, 6510, 6727, 7316, 7434, 7812, 8260, 8649, 9145, 9610, 9765, 10620, 10974, 11532, 12390, 12803, 13020, 13454, 14415, 14868, 16461, 17298, 18290, 18585, 19220, 19530, 20181, 21948, 24780, 25606, 26908, 27435, 28830, 32922, 33635, 34596, 36580, 37170, 38409, 39060, 40362, 43245, 51212, 54870, 56699, 57660, 60543, 64015, 65844, 67270, 74340, 76818, 80724, 82305, 86490, 100905, 109740, 113398, 115227, 121086, 128030, 134540, 153636, 164610, 170097, 172980, 192045, 201810, 226796, 230454, 242172, 256060, 283495, 302715, 329220, 340194, 384090, 396893, 403620, 460908, 510291, 566990, 576135, 605430, 680388, 768180, 793786, 850485, 1020582, 1133980, 1152270, 1190679, 1210860, 1587572, 1700970, 1984465, 2041164, 2304540, 2381358, 2551455, 3401940, 3572037, 3968930, 4762716, 5102910, 5953395, 7144074, 7937860, 10205820, 11906790, 14288148, 17860185, 23813580, 35720370, 71440740]

約数ペア:

[(1, 71440740), (2, 35720370), (3, 23813580), (4, 17860185), (5, 14288148), (6, 11906790), (7, 10205820), (9, 7937860), (10, 7144074), (12, 5953395), (14, 5102910), (15, 4762716), (18, 3968930), (20, 3572037), (21, 3401940), (28, 2551455), (30, 2381358), (31, 2304540), (35, 2041164), (36, 1984465), (42, 1700970), (45, 1587572), (59, 1210860), (60, 1190679), (62, 1152270), (63, 1133980), (70, 1020582), (84, 850485), (90, 793786), (93, 768180), (105, 680388), (118, 605430), (124, 576135), (126, 566990), (140, 510291), (155, 460908), (177, 403620), (180, 396893), (186, 384090), (210, 340194), (217, 329220), (236, 302715), (252, 283495), (279, 256060), (295, 242172), (310, 230454), (315, 226796), (354, 201810), (372, 192045), (413, 172980), (420, 170097), (434, 164610), (465, 153636), (531, 134540), (558, 128030), (590, 121086), (620, 115227), (630, 113398), (651, 109740), (708, 100905), (826, 86490), (868, 82305), (885, 80724), (930, 76818), (961, 74340), (1062, 67270), (1085, 65844), (1116, 64015), (1180, 60543), (1239, 57660), (1260, 56699), (1302, 54870), (1395, 51212), (1652, 43245), (1770, 40362), (1829, 39060), (1860, 38409), (1922, 37170), (1953, 36580), (2065, 34596), (2124, 33635), (2170, 32922), (2478, 28830), (2604, 27435), (2655, 26908), (2790, 25606), (2883, 24780), (3255, 21948), (3540, 20181), (3658, 19530), (3717, 19220), (3844, 18585), (3906, 18290), (4130, 17298), (4340, 16461), (4805, 14868), (4956, 14415), (5310, 13454), (5487, 13020), (5580, 12803), (5766, 12390), (6195, 11532), (6510, 10974), (6727, 10620), (7316, 9765), (7434, 9610), (7812, 9145), (8260, 8649)]