646946580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81071}}^1$

素因数の和:81109

約数の個数: 96

約数和(自身を含む): 2179215360

約数和(自身を除く): 1532268780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 81071, 162142, 243213, 324284, 405355, 486426, 567497, 810710, 972852, 1134994, 1216065, 1540349, 1621420, 1702491, 2269988, 2432130, 2837485, 3080698, 3404982, 4621047, 4864260, 5674970, 6161396, 6809964, 7701745, 8512455, 9242094, 10782443, 11349940, 15403490, 17024910, 18484188, 21564886, 23105235, 30806980, 32347329, 34049820, 43129772, 46210470, 53912215, 64694658, 92420940, 107824430, 129389316, 161736645, 215648860, 323473290, 646946580]

約数ペア:

[(1, 646946580), (2, 323473290), (3, 215648860), (4, 161736645), (5, 129389316), (6, 107824430), (7, 92420940), (10, 64694658), (12, 53912215), (14, 46210470), (15, 43129772), (19, 34049820), (20, 32347329), (21, 30806980), (28, 23105235), (30, 21564886), (35, 18484188), (38, 17024910), (42, 15403490), (57, 11349940), (60, 10782443), (70, 9242094), (76, 8512455), (84, 7701745), (95, 6809964), (105, 6161396), (114, 5674970), (133, 4864260), (140, 4621047), (190, 3404982), (210, 3080698), (228, 2837485), (266, 2432130), (285, 2269988), (380, 1702491), (399, 1621420), (420, 1540349), (532, 1216065), (570, 1134994), (665, 972852), (798, 810710), (1140, 567497), (1330, 486426), (1596, 405355), (1995, 324284), (2660, 243213), (3990, 162142), (7980, 81071)]