20459790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 160

約数和(自身を含む): 62203680

約数和(自身を除く): 41743890

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 29, 30, 39, 45, 54, 58, 65, 67, 78, 81, 87, 90, 117, 130, 134, 135, 145, 162, 174, 195, 201, 234, 261, 270, 290, 335, 351, 377, 390, 402, 405, 435, 522, 585, 603, 670, 702, 754, 783, 810, 870, 871, 1005, 1053, 1131, 1170, 1206, 1305, 1566, 1742, 1755, 1809, 1885, 1943, 2010, 2106, 2262, 2349, 2610, 2613, 3015, 3393, 3510, 3618, 3770, 3886, 3915, 4355, 4698, 5226, 5265, 5427, 5655, 5829, 6030, 6786, 7830, 7839, 8710, 9045, 9715, 10179, 10530, 10854, 11310, 11658, 11745, 13065, 15678, 16965, 17487, 18090, 19430, 20358, 23490, 23517, 25259, 26130, 27135, 29145, 30537, 33930, 34974, 39195, 47034, 50518, 50895, 52461, 54270, 58290, 61074, 70551, 75777, 78390, 87435, 101790, 104922, 117585, 126295, 141102, 151554, 152685, 157383, 174870, 227331, 235170, 252590, 262305, 305370, 314766, 352755, 378885, 454662, 524610, 681993, 705510, 757770, 786915, 1136655, 1363986, 1573830, 2045979, 2273310, 3409965, 4091958, 6819930, 10229895, 20459790]

約数ペア:

[(1, 20459790), (2, 10229895), (3, 6819930), (5, 4091958), (6, 3409965), (9, 2273310), (10, 2045979), (13, 1573830), (15, 1363986), (18, 1136655), (26, 786915), (27, 757770), (29, 705510), (30, 681993), (39, 524610), (45, 454662), (54, 378885), (58, 352755), (65, 314766), (67, 305370), (78, 262305), (81, 252590), (87, 235170), (90, 227331), (117, 174870), (130, 157383), (134, 152685), (135, 151554), (145, 141102), (162, 126295), (174, 117585), (195, 104922), (201, 101790), (234, 87435), (261, 78390), (270, 75777), (290, 70551), (335, 61074), (351, 58290), (377, 54270), (390, 52461), (402, 50895), (405, 50518), (435, 47034), (522, 39195), (585, 34974), (603, 33930), (670, 30537), (702, 29145), (754, 27135), (783, 26130), (810, 25259), (870, 23517), (871, 23490), (1005, 20358), (1053, 19430), (1131, 18090), (1170, 17487), (1206, 16965), (1305, 15678), (1566, 13065), (1742, 11745), (1755, 11658), (1809, 11310), (1885, 10854), (1943, 10530), (2010, 10179), (2106, 9715), (2262, 9045), (2349, 8710), (2610, 7839), (2613, 7830), (3015, 6786), (3393, 6030), (3510, 5829), (3618, 5655), (3770, 5427), (3886, 5265), (3915, 5226), (4355, 4698)]