20385456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{359}}^1$

素因数の和:403

約数の個数: 120

約数和(自身を含む): 65352960

約数和(自身を除く): 44967504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 169, 182, 208, 273, 312, 336, 338, 359, 364, 507, 546, 624, 676, 718, 728, 1014, 1077, 1092, 1183, 1352, 1436, 1456, 2028, 2154, 2184, 2366, 2513, 2704, 2872, 3549, 4056, 4308, 4368, 4667, 4732, 5026, 5744, 7098, 7539, 8112, 8616, 9334, 9464, 10052, 14001, 14196, 15078, 17232, 18668, 18928, 20104, 28002, 28392, 30156, 32669, 37336, 40208, 56004, 56784, 60312, 60671, 65338, 74672, 98007, 112008, 120624, 121342, 130676, 182013, 196014, 224016, 242684, 261352, 364026, 392028, 424697, 485368, 522704, 728052, 784056, 849394, 970736, 1274091, 1456104, 1568112, 1698788, 2548182, 2912208, 3397576, 5096364, 6795152, 10192728, 20385456]

約数ペア:

[(1, 20385456), (2, 10192728), (3, 6795152), (4, 5096364), (6, 3397576), (7, 2912208), (8, 2548182), (12, 1698788), (13, 1568112), (14, 1456104), (16, 1274091), (21, 970736), (24, 849394), (26, 784056), (28, 728052), (39, 522704), (42, 485368), (48, 424697), (52, 392028), (56, 364026), (78, 261352), (84, 242684), (91, 224016), (104, 196014), (112, 182013), (156, 130676), (168, 121342), (169, 120624), (182, 112008), (208, 98007), (273, 74672), (312, 65338), (336, 60671), (338, 60312), (359, 56784), (364, 56004), (507, 40208), (546, 37336), (624, 32669), (676, 30156), (718, 28392), (728, 28002), (1014, 20104), (1077, 18928), (1092, 18668), (1183, 17232), (1352, 15078), (1436, 14196), (1456, 14001), (2028, 10052), (2154, 9464), (2184, 9334), (2366, 8616), (2513, 8112), (2704, 7539), (2872, 7098), (3549, 5744), (4056, 5026), (4308, 4732), (4368, 4667)]