15420020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:94

約数の個数: 192

約数和(自身を含む): 46448640

約数和(自身を除く): 31028620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 19, 20, 22, 28, 31, 34, 35, 38, 44, 55, 62, 68, 70, 76, 77, 85, 95, 110, 119, 124, 133, 140, 154, 155, 170, 187, 190, 209, 217, 220, 238, 266, 308, 310, 323, 340, 341, 374, 380, 385, 418, 434, 476, 527, 532, 589, 595, 620, 646, 665, 682, 748, 770, 836, 868, 935, 1045, 1054, 1085, 1178, 1190, 1292, 1309, 1330, 1364, 1463, 1540, 1615, 1705, 1870, 2090, 2108, 2170, 2261, 2356, 2380, 2387, 2618, 2635, 2660, 2926, 2945, 3230, 3410, 3553, 3689, 3740, 4123, 4180, 4340, 4522, 4774, 5236, 5270, 5797, 5852, 5890, 6460, 6479, 6545, 6820, 7106, 7315, 7378, 8246, 9044, 9548, 10013, 10540, 11305, 11594, 11780, 11935, 12958, 13090, 14212, 14630, 14756, 16492, 17765, 18445, 20026, 20615, 22610, 23188, 23870, 24871, 25916, 26180, 28985, 29260, 32395, 35530, 36890, 40052, 40579, 41230, 45220, 45353, 47740, 49742, 50065, 57970, 64790, 70091, 71060, 73780, 81158, 82460, 90706, 99484, 100130, 110143, 115940, 124355, 129580, 140182, 162316, 181412, 200260, 202895, 220286, 226765, 248710, 280364, 350455, 405790, 440572, 453530, 497420, 550715, 700910, 771001, 811580, 907060, 1101430, 1401820, 1542002, 2202860, 3084004, 3855005, 7710010, 15420020]

約数ペア:

[(1, 15420020), (2, 7710010), (4, 3855005), (5, 3084004), (7, 2202860), (10, 1542002), (11, 1401820), (14, 1101430), (17, 907060), (19, 811580), (20, 771001), (22, 700910), (28, 550715), (31, 497420), (34, 453530), (35, 440572), (38, 405790), (44, 350455), (55, 280364), (62, 248710), (68, 226765), (70, 220286), (76, 202895), (77, 200260), (85, 181412), (95, 162316), (110, 140182), (119, 129580), (124, 124355), (133, 115940), (140, 110143), (154, 100130), (155, 99484), (170, 90706), (187, 82460), (190, 81158), (209, 73780), (217, 71060), (220, 70091), (238, 64790), (266, 57970), (308, 50065), (310, 49742), (323, 47740), (340, 45353), (341, 45220), (374, 41230), (380, 40579), (385, 40052), (418, 36890), (434, 35530), (476, 32395), (527, 29260), (532, 28985), (589, 26180), (595, 25916), (620, 24871), (646, 23870), (665, 23188), (682, 22610), (748, 20615), (770, 20026), (836, 18445), (868, 17765), (935, 16492), (1045, 14756), (1054, 14630), (1085, 14212), (1178, 13090), (1190, 12958), (1292, 11935), (1309, 11780), (1330, 11594), (1364, 11305), (1463, 10540), (1540, 10013), (1615, 9548), (1705, 9044), (1870, 8246), (2090, 7378), (2108, 7315), (2170, 7106), (2261, 6820), (2356, 6545), (2380, 6479), (2387, 6460), (2618, 5890), (2635, 5852), (2660, 5797), (2926, 5270), (2945, 5236), (3230, 4774), (3410, 4522), (3553, 4340), (3689, 4180), (3740, 4123)]