19946940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 41016900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 107, 130, 156, 195, 214, 239, 260, 321, 390, 428, 478, 535, 642, 717, 780, 956, 1070, 1195, 1284, 1391, 1434, 1605, 2140, 2390, 2782, 2868, 3107, 3210, 3585, 4173, 4780, 5564, 6214, 6420, 6955, 7170, 8346, 9321, 12428, 13910, 14340, 15535, 16692, 18642, 20865, 25573, 27820, 31070, 37284, 41730, 46605, 51146, 62140, 76719, 83460, 93210, 102292, 127865, 153438, 186420, 255730, 306876, 332449, 383595, 511460, 664898, 767190, 997347, 1329796, 1534380, 1662245, 1994694, 3324490, 3989388, 4986735, 6648980, 9973470, 19946940]

約数ペア:

[(1, 19946940), (2, 9973470), (3, 6648980), (4, 4986735), (5, 3989388), (6, 3324490), (10, 1994694), (12, 1662245), (13, 1534380), (15, 1329796), (20, 997347), (26, 767190), (30, 664898), (39, 511460), (52, 383595), (60, 332449), (65, 306876), (78, 255730), (107, 186420), (130, 153438), (156, 127865), (195, 102292), (214, 93210), (239, 83460), (260, 76719), (321, 62140), (390, 51146), (428, 46605), (478, 41730), (535, 37284), (642, 31070), (717, 27820), (780, 25573), (956, 20865), (1070, 18642), (1195, 16692), (1284, 15535), (1391, 14340), (1434, 13910), (1605, 12428), (2140, 9321), (2390, 8346), (2782, 7170), (2868, 6955), (3107, 6420), (3210, 6214), (3585, 5564), (4173, 4780)]