78481620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:534

約数の個数: 144

約数和(自身を含む): 274310400

約数和(自身を除く): 195828780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 199, 210, 252, 313, 315, 398, 420, 597, 626, 630, 796, 939, 995, 1194, 1252, 1260, 1393, 1565, 1791, 1878, 1990, 2191, 2388, 2786, 2817, 2985, 3130, 3582, 3756, 3980, 4179, 4382, 4695, 5572, 5634, 5970, 6260, 6573, 6965, 7164, 8358, 8764, 8955, 9390, 10955, 11268, 11940, 12537, 13146, 13930, 14085, 16716, 17910, 18780, 19719, 20895, 21910, 25074, 26292, 27860, 28170, 32865, 35820, 39438, 41790, 43820, 50148, 56340, 62287, 62685, 65730, 78876, 83580, 98595, 124574, 125370, 131460, 186861, 197190, 249148, 250740, 311435, 373722, 394380, 436009, 560583, 622870, 747444, 872018, 934305, 1121166, 1245740, 1308027, 1744036, 1868610, 2180045, 2242332, 2616054, 2802915, 3737220, 3924081, 4360090, 5232108, 5605830, 6540135, 7848162, 8720180, 11211660, 13080270, 15696324, 19620405, 26160540, 39240810, 78481620]

約数ペア:

[(1, 78481620), (2, 39240810), (3, 26160540), (4, 19620405), (5, 15696324), (6, 13080270), (7, 11211660), (9, 8720180), (10, 7848162), (12, 6540135), (14, 5605830), (15, 5232108), (18, 4360090), (20, 3924081), (21, 3737220), (28, 2802915), (30, 2616054), (35, 2242332), (36, 2180045), (42, 1868610), (45, 1744036), (60, 1308027), (63, 1245740), (70, 1121166), (84, 934305), (90, 872018), (105, 747444), (126, 622870), (140, 560583), (180, 436009), (199, 394380), (210, 373722), (252, 311435), (313, 250740), (315, 249148), (398, 197190), (420, 186861), (597, 131460), (626, 125370), (630, 124574), (796, 98595), (939, 83580), (995, 78876), (1194, 65730), (1252, 62685), (1260, 62287), (1393, 56340), (1565, 50148), (1791, 43820), (1878, 41790), (1990, 39438), (2191, 35820), (2388, 32865), (2786, 28170), (2817, 27860), (2985, 26292), (3130, 25074), (3582, 21910), (3756, 20895), (3980, 19719), (4179, 18780), (4382, 17910), (4695, 16716), (5572, 14085), (5634, 13930), (5970, 13146), (6260, 12537), (6573, 11940), (6965, 11268), (7164, 10955), (8358, 9390), (8764, 8955)]