20449170

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4637}}^1$

素因数の和:4664

約数の個数: 72

約数和(自身を含む): 61861644

約数和(自身を除く): 41412474

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4637, 9274, 13911, 23185, 27822, 32459, 41733, 46370, 64918, 69555, 83466, 97377, 139110, 162295, 194754, 208665, 227213, 292131, 324590, 417330, 454426, 486885, 584262, 681639, 973770, 1136065, 1363278, 1460655, 2044917, 2272130, 2921310, 3408195, 4089834, 6816390, 10224585, 20449170]

約数ペア:

[(1, 20449170), (2, 10224585), (3, 6816390), (5, 4089834), (6, 3408195), (7, 2921310), (9, 2272130), (10, 2044917), (14, 1460655), (15, 1363278), (18, 1136065), (21, 973770), (30, 681639), (35, 584262), (42, 486885), (45, 454426), (49, 417330), (63, 324590), (70, 292131), (90, 227213), (98, 208665), (105, 194754), (126, 162295), (147, 139110), (210, 97377), (245, 83466), (294, 69555), (315, 64918), (441, 46370), (490, 41733), (630, 32459), (735, 27822), (882, 23185), (1470, 13911), (2205, 9274), (4410, 4637)]