31393700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 81661440

約数和(自身を除く): 50267740

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 41, 50, 52, 62, 65, 76, 82, 95, 100, 124, 130, 155, 164, 190, 205, 247, 260, 310, 325, 380, 403, 410, 475, 494, 533, 589, 620, 650, 775, 779, 806, 820, 950, 988, 1025, 1066, 1178, 1235, 1271, 1300, 1550, 1558, 1612, 1900, 2015, 2050, 2132, 2356, 2470, 2542, 2665, 2945, 3100, 3116, 3895, 4030, 4100, 4940, 5084, 5330, 5890, 6175, 6355, 7657, 7790, 8060, 10075, 10127, 10660, 11780, 12350, 12710, 13325, 14725, 15314, 15580, 16523, 19475, 20150, 20254, 24149, 24700, 25420, 26650, 29450, 30628, 31775, 33046, 38285, 38950, 40300, 40508, 48298, 50635, 53300, 58900, 63550, 66092, 76570, 77900, 82615, 96596, 101270, 120745, 127100, 153140, 165230, 191425, 202540, 241490, 253175, 313937, 330460, 382850, 413075, 482980, 506350, 603725, 627874, 765700, 826150, 1012700, 1207450, 1255748, 1569685, 1652300, 2414900, 3139370, 6278740, 7848425, 15696850, 31393700]

約数ペア:

[(1, 31393700), (2, 15696850), (4, 7848425), (5, 6278740), (10, 3139370), (13, 2414900), (19, 1652300), (20, 1569685), (25, 1255748), (26, 1207450), (31, 1012700), (38, 826150), (41, 765700), (50, 627874), (52, 603725), (62, 506350), (65, 482980), (76, 413075), (82, 382850), (95, 330460), (100, 313937), (124, 253175), (130, 241490), (155, 202540), (164, 191425), (190, 165230), (205, 153140), (247, 127100), (260, 120745), (310, 101270), (325, 96596), (380, 82615), (403, 77900), (410, 76570), (475, 66092), (494, 63550), (533, 58900), (589, 53300), (620, 50635), (650, 48298), (775, 40508), (779, 40300), (806, 38950), (820, 38285), (950, 33046), (988, 31775), (1025, 30628), (1066, 29450), (1178, 26650), (1235, 25420), (1271, 24700), (1300, 24149), (1550, 20254), (1558, 20150), (1612, 19475), (1900, 16523), (2015, 15580), (2050, 15314), (2132, 14725), (2356, 13325), (2470, 12710), (2542, 12350), (2665, 11780), (2945, 10660), (3100, 10127), (3116, 10075), (3895, 8060), (4030, 7790), (4100, 7657), (4940, 6355), (5084, 6175), (5330, 5890)]