19441890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 38618910

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 78, 87, 90, 117, 130, 135, 145, 174, 191, 195, 234, 261, 270, 290, 351, 377, 382, 390, 435, 522, 573, 585, 702, 754, 783, 870, 955, 1131, 1146, 1170, 1305, 1566, 1719, 1755, 1885, 1910, 2262, 2483, 2610, 2865, 3393, 3438, 3510, 3770, 3915, 4966, 5157, 5539, 5655, 5730, 6786, 7449, 7830, 8595, 10179, 10314, 11078, 11310, 12415, 14898, 16617, 16965, 17190, 20358, 22347, 24830, 25785, 27695, 33234, 33930, 37245, 44694, 49851, 50895, 51570, 55390, 67041, 72007, 74490, 83085, 99702, 101790, 111735, 134082, 144014, 149553, 166170, 216021, 223470, 249255, 299106, 335205, 360035, 432042, 498510, 648063, 670410, 720070, 747765, 1080105, 1296126, 1495530, 1944189, 2160210, 3240315, 3888378, 6480630, 9720945, 19441890]

約数ペア:

[(1, 19441890), (2, 9720945), (3, 6480630), (5, 3888378), (6, 3240315), (9, 2160210), (10, 1944189), (13, 1495530), (15, 1296126), (18, 1080105), (26, 747765), (27, 720070), (29, 670410), (30, 648063), (39, 498510), (45, 432042), (54, 360035), (58, 335205), (65, 299106), (78, 249255), (87, 223470), (90, 216021), (117, 166170), (130, 149553), (135, 144014), (145, 134082), (174, 111735), (191, 101790), (195, 99702), (234, 83085), (261, 74490), (270, 72007), (290, 67041), (351, 55390), (377, 51570), (382, 50895), (390, 49851), (435, 44694), (522, 37245), (573, 33930), (585, 33234), (702, 27695), (754, 25785), (783, 24830), (870, 22347), (955, 20358), (1131, 17190), (1146, 16965), (1170, 16617), (1305, 14898), (1566, 12415), (1719, 11310), (1755, 11078), (1885, 10314), (1910, 10179), (2262, 8595), (2483, 7830), (2610, 7449), (2865, 6786), (3393, 5730), (3438, 5655), (3510, 5539), (3770, 5157), (3915, 4966)]