19306303996

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{557}}^1\times {\mathrm{1987}}^1$

素因数の和:2651

約数の個数: 72

約数和(自身を含む): 39835106640

約数和(自身を除く): 20528802644

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 557, 623, 1114, 1246, 1987, 2228, 2492, 3899, 3974, 4361, 7798, 7948, 8722, 13909, 15596, 17444, 27293, 27818, 49573, 54586, 55636, 97363, 99146, 109172, 176843, 194726, 198292, 347011, 353686, 389452, 694022, 707372, 1106759, 1237901, 1388044, 2213518, 2429077, 2475802, 4427036, 4858154, 4951604, 7747313, 8665307, 9716308, 15494626, 17330614, 30989252, 34661228, 54231191, 98501551, 108462382, 197003102, 216924764, 394006204, 689510857, 1379021714, 2758043428, 4826575999, 9653151998, 19306303996]

約数ペア:

[(1, 19306303996), (2, 9653151998), (4, 4826575999), (7, 2758043428), (14, 1379021714), (28, 689510857), (49, 394006204), (89, 216924764), (98, 197003102), (178, 108462382), (196, 98501551), (356, 54231191), (557, 34661228), (623, 30989252), (1114, 17330614), (1246, 15494626), (1987, 9716308), (2228, 8665307), (2492, 7747313), (3899, 4951604), (3974, 4858154), (4361, 4427036), (7798, 2475802), (7948, 2429077), (8722, 2213518), (13909, 1388044), (15596, 1237901), (17444, 1106759), (27293, 707372), (27818, 694022), (49573, 389452), (54586, 353686), (55636, 347011), (97363, 198292), (99146, 194726), (109172, 176843)]