30131920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4139}}^1$

素因数の和:4172

約数の個数: 80

約数和(自身を含む): 86244480

約数和(自身を除く): 56112560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 4139, 7280, 8278, 16556, 20695, 28973, 33112, 41390, 53807, 57946, 66224, 82780, 107614, 115892, 144865, 165560, 215228, 231784, 269035, 289730, 331120, 376649, 430456, 463568, 538070, 579460, 753298, 860912, 1076140, 1158920, 1506596, 1883245, 2152280, 2317840, 3013192, 3766490, 4304560, 6026384, 7532980, 15065960, 30131920]

約数ペア:

[(1, 30131920), (2, 15065960), (4, 7532980), (5, 6026384), (7, 4304560), (8, 3766490), (10, 3013192), (13, 2317840), (14, 2152280), (16, 1883245), (20, 1506596), (26, 1158920), (28, 1076140), (35, 860912), (40, 753298), (52, 579460), (56, 538070), (65, 463568), (70, 430456), (80, 376649), (91, 331120), (104, 289730), (112, 269035), (130, 231784), (140, 215228), (182, 165560), (208, 144865), (260, 115892), (280, 107614), (364, 82780), (455, 66224), (520, 57946), (560, 53807), (728, 41390), (910, 33112), (1040, 28973), (1456, 20695), (1820, 16556), (3640, 8278), (4139, 7280)]