427195810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:188

約数の個数: 128

約数和(自身を含む): 899942400

約数和(自身を除く): 472746590

約数列:

[1, 2, 5, 10, 19, 29, 31, 38, 41, 58, 61, 62, 82, 95, 122, 145, 155, 190, 205, 290, 305, 310, 410, 551, 589, 610, 779, 899, 1102, 1159, 1178, 1189, 1271, 1558, 1769, 1798, 1891, 2318, 2378, 2501, 2542, 2755, 2945, 3538, 3782, 3895, 4495, 5002, 5510, 5795, 5890, 5945, 6355, 7790, 8845, 8990, 9455, 11590, 11890, 12505, 12710, 17081, 17690, 18910, 22591, 24149, 25010, 33611, 34162, 35929, 36859, 45182, 47519, 48298, 54839, 67222, 71858, 72529, 73718, 77531, 85405, 95038, 109678, 112955, 120745, 145058, 155062, 168055, 170810, 179645, 184295, 225910, 237595, 241490, 274195, 336110, 359290, 362645, 368590, 387655, 475190, 548390, 700321, 725290, 775310, 1041941, 1378051, 1400642, 1473089, 2083882, 2248399, 2756102, 2946178, 3501605, 4496798, 5209705, 6890255, 7003210, 7365445, 10419410, 11241995, 13780510, 14730890, 22483990, 42719581, 85439162, 213597905, 427195810]

約数ペア:

[(1, 427195810), (2, 213597905), (5, 85439162), (10, 42719581), (19, 22483990), (29, 14730890), (31, 13780510), (38, 11241995), (41, 10419410), (58, 7365445), (61, 7003210), (62, 6890255), (82, 5209705), (95, 4496798), (122, 3501605), (145, 2946178), (155, 2756102), (190, 2248399), (205, 2083882), (290, 1473089), (305, 1400642), (310, 1378051), (410, 1041941), (551, 775310), (589, 725290), (610, 700321), (779, 548390), (899, 475190), (1102, 387655), (1159, 368590), (1178, 362645), (1189, 359290), (1271, 336110), (1558, 274195), (1769, 241490), (1798, 237595), (1891, 225910), (2318, 184295), (2378, 179645), (2501, 170810), (2542, 168055), (2755, 155062), (2945, 145058), (3538, 120745), (3782, 112955), (3895, 109678), (4495, 95038), (5002, 85405), (5510, 77531), (5795, 73718), (5890, 72529), (5945, 71858), (6355, 67222), (7790, 54839), (8845, 48298), (8990, 47519), (9455, 45182), (11590, 36859), (11890, 35929), (12505, 34162), (12710, 33611), (17081, 25010), (17690, 24149), (18910, 22591)]