1851247825

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 2827953920

約数和(自身を除く): 976706095

約数列:

[1, 5, 7, 25, 35, 37, 43, 61, 109, 175, 185, 215, 259, 301, 305, 427, 545, 763, 925, 1075, 1295, 1505, 1525, 1591, 2135, 2257, 2623, 2725, 3815, 4033, 4687, 6475, 6649, 7525, 7955, 10675, 11137, 11285, 13115, 15799, 18361, 19075, 20165, 23435, 28231, 32809, 33245, 39775, 46543, 55685, 56425, 65575, 78995, 91805, 97051, 100825, 117175, 141155, 164045, 166225, 173419, 232715, 246013, 278425, 285907, 394975, 459025, 485255, 679357, 705775, 820225, 867095, 1163575, 1213933, 1230065, 1429535, 1722091, 2001349, 2426275, 3396785, 4335475, 6069665, 6150325, 7147675, 8610455, 10006745, 10578559, 16983925, 30348325, 43052275, 50033725, 52892795, 74049913, 264463975, 370249565, 1851247825]

約数ペア:

[(1, 1851247825), (5, 370249565), (7, 264463975), (25, 74049913), (35, 52892795), (37, 50033725), (43, 43052275), (61, 30348325), (109, 16983925), (175, 10578559), (185, 10006745), (215, 8610455), (259, 7147675), (301, 6150325), (305, 6069665), (427, 4335475), (545, 3396785), (763, 2426275), (925, 2001349), (1075, 1722091), (1295, 1429535), (1505, 1230065), (1525, 1213933), (1591, 1163575), (2135, 867095), (2257, 820225), (2623, 705775), (2725, 679357), (3815, 485255), (4033, 459025), (4687, 394975), (6475, 285907), (6649, 278425), (7525, 246013), (7955, 232715), (10675, 173419), (11137, 166225), (11285, 164045), (13115, 141155), (15799, 117175), (18361, 100825), (19075, 97051), (20165, 91805), (23435, 78995), (28231, 65575), (32809, 56425), (33245, 55685), (39775, 46543)]