1971796260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{617}}^1\times {\mathrm{1087}}^1$

素因数の和:1730

約数の個数: 144

約数和(自身を含む): 6438749184

約数和(自身を除く): 4466952924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 617, 735, 980, 1087, 1234, 1470, 1851, 2174, 2468, 2940, 3085, 3261, 3702, 4319, 4348, 5435, 6170, 6522, 7404, 7609, 8638, 9255, 10870, 12340, 12957, 13044, 15218, 16305, 17276, 18510, 21595, 21740, 22827, 25914, 30233, 30436, 32610, 37020, 38045, 43190, 45654, 51828, 53263, 60466, 64785, 65220, 76090, 86380, 90699, 91308, 106526, 114135, 120932, 129570, 151165, 152180, 159789, 181398, 213052, 228270, 259140, 266315, 302330, 319578, 362796, 453495, 456540, 532630, 604660, 639156, 670679, 798945, 906990, 1065260, 1341358, 1597890, 1813980, 2012037, 2682716, 3195780, 3353395, 4024074, 4694753, 6706790, 8048148, 9389506, 10060185, 13413580, 14084259, 18779012, 20120370, 23473765, 28168518, 32863271, 40240740, 46947530, 56337036, 65726542, 70421295, 93895060, 98589813, 131453084, 140842590, 164316355, 197179626, 281685180, 328632710, 394359252, 492949065, 657265420, 985898130, 1971796260]

約数ペア:

[(1, 1971796260), (2, 985898130), (3, 657265420), (4, 492949065), (5, 394359252), (6, 328632710), (7, 281685180), (10, 197179626), (12, 164316355), (14, 140842590), (15, 131453084), (20, 98589813), (21, 93895060), (28, 70421295), (30, 65726542), (35, 56337036), (42, 46947530), (49, 40240740), (60, 32863271), (70, 28168518), (84, 23473765), (98, 20120370), (105, 18779012), (140, 14084259), (147, 13413580), (196, 10060185), (210, 9389506), (245, 8048148), (294, 6706790), (420, 4694753), (490, 4024074), (588, 3353395), (617, 3195780), (735, 2682716), (980, 2012037), (1087, 1813980), (1234, 1597890), (1470, 1341358), (1851, 1065260), (2174, 906990), (2468, 798945), (2940, 670679), (3085, 639156), (3261, 604660), (3702, 532630), (4319, 456540), (4348, 453495), (5435, 362796), (6170, 319578), (6522, 302330), (7404, 266315), (7609, 259140), (8638, 228270), (9255, 213052), (10870, 181398), (12340, 159789), (12957, 152180), (13044, 151165), (15218, 129570), (16305, 120932), (17276, 114135), (18510, 106526), (21595, 91308), (21740, 90699), (22827, 86380), (25914, 76090), (30233, 65220), (30436, 64785), (32610, 60466), (37020, 53263), (38045, 51828), (43190, 45654)]