42628775

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 68700960

約数和(自身を除く): 26072185

約数列:

[1, 5, 7, 17, 23, 25, 35, 49, 85, 89, 115, 119, 161, 175, 245, 391, 425, 445, 575, 595, 623, 805, 833, 1127, 1225, 1513, 1955, 2047, 2225, 2737, 2975, 3115, 4025, 4165, 4361, 5635, 7565, 9775, 10235, 10591, 13685, 14329, 15575, 19159, 20825, 21805, 28175, 34799, 37825, 51175, 52955, 68425, 71645, 74137, 95795, 100303, 109025, 173995, 243593, 264775, 358225, 370685, 478975, 501515, 869975, 1217965, 1705151, 1853425, 2507575, 6089825, 8525755, 42628775]

約数ペア:

[(1, 42628775), (5, 8525755), (7, 6089825), (17, 2507575), (23, 1853425), (25, 1705151), (35, 1217965), (49, 869975), (85, 501515), (89, 478975), (115, 370685), (119, 358225), (161, 264775), (175, 243593), (245, 173995), (391, 109025), (425, 100303), (445, 95795), (575, 74137), (595, 71645), (623, 68425), (805, 52955), (833, 51175), (1127, 37825), (1225, 34799), (1513, 28175), (1955, 21805), (2047, 20825), (2225, 19159), (2737, 15575), (2975, 14329), (3115, 13685), (4025, 10591), (4165, 10235), (4361, 9775), (5635, 7565)]