18970350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 57250800

約数和(自身を除く): 38280450

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 29, 30, 35, 42, 49, 50, 58, 70, 75, 87, 89, 98, 105, 145, 147, 150, 174, 175, 178, 203, 210, 245, 267, 290, 294, 350, 406, 435, 445, 490, 525, 534, 609, 623, 725, 735, 870, 890, 1015, 1050, 1218, 1225, 1246, 1335, 1421, 1450, 1470, 1869, 2030, 2175, 2225, 2450, 2581, 2670, 2842, 3045, 3115, 3675, 3738, 4263, 4350, 4361, 4450, 5075, 5162, 6090, 6230, 6675, 7105, 7350, 7743, 8526, 8722, 9345, 10150, 12905, 13083, 13350, 14210, 15225, 15486, 15575, 18067, 18690, 21315, 21805, 25810, 26166, 30450, 31150, 35525, 36134, 38715, 42630, 43610, 46725, 54201, 64525, 65415, 71050, 77430, 90335, 93450, 106575, 108402, 109025, 126469, 129050, 130830, 180670, 193575, 213150, 218050, 252938, 271005, 327075, 379407, 387150, 451675, 542010, 632345, 654150, 758814, 903350, 1264690, 1355025, 1897035, 2710050, 3161725, 3794070, 6323450, 9485175, 18970350]

約数ペア:

[(1, 18970350), (2, 9485175), (3, 6323450), (5, 3794070), (6, 3161725), (7, 2710050), (10, 1897035), (14, 1355025), (15, 1264690), (21, 903350), (25, 758814), (29, 654150), (30, 632345), (35, 542010), (42, 451675), (49, 387150), (50, 379407), (58, 327075), (70, 271005), (75, 252938), (87, 218050), (89, 213150), (98, 193575), (105, 180670), (145, 130830), (147, 129050), (150, 126469), (174, 109025), (175, 108402), (178, 106575), (203, 93450), (210, 90335), (245, 77430), (267, 71050), (290, 65415), (294, 64525), (350, 54201), (406, 46725), (435, 43610), (445, 42630), (490, 38715), (525, 36134), (534, 35525), (609, 31150), (623, 30450), (725, 26166), (735, 25810), (870, 21805), (890, 21315), (1015, 18690), (1050, 18067), (1218, 15575), (1225, 15486), (1246, 15225), (1335, 14210), (1421, 13350), (1450, 13083), (1470, 12905), (1869, 10150), (2030, 9345), (2175, 8722), (2225, 8526), (2450, 7743), (2581, 7350), (2670, 7105), (2842, 6675), (3045, 6230), (3115, 6090), (3675, 5162), (3738, 5075), (4263, 4450), (4350, 4361)]