278992140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4231}}^1$

素因数の和:4407

約数の個数: 96

約数和(自身を含む): 898673664

約数和(自身を除く): 619681524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 157, 210, 314, 420, 471, 628, 785, 942, 1099, 1570, 1884, 2198, 2355, 3140, 3297, 4231, 4396, 4710, 5495, 6594, 8462, 9420, 10990, 12693, 13188, 16485, 16924, 21155, 21980, 25386, 29617, 32970, 42310, 50772, 59234, 63465, 65940, 84620, 88851, 118468, 126930, 148085, 177702, 253860, 296170, 355404, 444255, 592340, 664267, 888510, 1328534, 1777020, 1992801, 2657068, 3321335, 3985602, 4649869, 6642670, 7971204, 9299738, 9964005, 13285340, 13949607, 18599476, 19928010, 23249345, 27899214, 39856020, 46498690, 55798428, 69748035, 92997380, 139496070, 278992140]

約数ペア:

[(1, 278992140), (2, 139496070), (3, 92997380), (4, 69748035), (5, 55798428), (6, 46498690), (7, 39856020), (10, 27899214), (12, 23249345), (14, 19928010), (15, 18599476), (20, 13949607), (21, 13285340), (28, 9964005), (30, 9299738), (35, 7971204), (42, 6642670), (60, 4649869), (70, 3985602), (84, 3321335), (105, 2657068), (140, 1992801), (157, 1777020), (210, 1328534), (314, 888510), (420, 664267), (471, 592340), (628, 444255), (785, 355404), (942, 296170), (1099, 253860), (1570, 177702), (1884, 148085), (2198, 126930), (2355, 118468), (3140, 88851), (3297, 84620), (4231, 65940), (4396, 63465), (4710, 59234), (5495, 50772), (6594, 42310), (8462, 32970), (9420, 29617), (10990, 25386), (12693, 21980), (13188, 21155), (16485, 16924)]