20951190

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 40980330

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 47, 54, 65, 78, 90, 94, 117, 127, 130, 135, 141, 195, 234, 235, 254, 270, 282, 351, 381, 390, 423, 470, 585, 611, 635, 702, 705, 762, 846, 1143, 1170, 1222, 1269, 1270, 1410, 1651, 1755, 1833, 1905, 2115, 2286, 2538, 3055, 3302, 3429, 3510, 3666, 3810, 4230, 4953, 5499, 5715, 5969, 6110, 6345, 6858, 8255, 9165, 9906, 10998, 11430, 11938, 12690, 14859, 16497, 16510, 17145, 17907, 18330, 24765, 27495, 29718, 29845, 32994, 34290, 35814, 44577, 49530, 53721, 54990, 59690, 74295, 77597, 82485, 89154, 89535, 107442, 148590, 155194, 161163, 164970, 179070, 222885, 232791, 268605, 322326, 387985, 445770, 465582, 537210, 698373, 775970, 805815, 1163955, 1396746, 1611630, 2095119, 2327910, 3491865, 4190238, 6983730, 10475595, 20951190]

約数ペア:

[(1, 20951190), (2, 10475595), (3, 6983730), (5, 4190238), (6, 3491865), (9, 2327910), (10, 2095119), (13, 1611630), (15, 1396746), (18, 1163955), (26, 805815), (27, 775970), (30, 698373), (39, 537210), (45, 465582), (47, 445770), (54, 387985), (65, 322326), (78, 268605), (90, 232791), (94, 222885), (117, 179070), (127, 164970), (130, 161163), (135, 155194), (141, 148590), (195, 107442), (234, 89535), (235, 89154), (254, 82485), (270, 77597), (282, 74295), (351, 59690), (381, 54990), (390, 53721), (423, 49530), (470, 44577), (585, 35814), (611, 34290), (635, 32994), (702, 29845), (705, 29718), (762, 27495), (846, 24765), (1143, 18330), (1170, 17907), (1222, 17145), (1269, 16510), (1270, 16497), (1410, 14859), (1651, 12690), (1755, 11938), (1833, 11430), (1905, 10998), (2115, 9906), (2286, 9165), (2538, 8255), (3055, 6858), (3302, 6345), (3429, 6110), (3510, 5969), (3666, 5715), (3810, 5499), (4230, 4953)]