20099691872

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{218627}}^1$

素因数の和:218680

約数の個数: 72

約数和(自身を含む): 45370119816

約数和(自身を除く): 25270427944

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 416, 442, 544, 676, 884, 1352, 1768, 2704, 2873, 3536, 5408, 5746, 7072, 11492, 22984, 45968, 91936, 218627, 437254, 874508, 1749016, 2842151, 3498032, 3716659, 5684302, 6996064, 7433318, 11368604, 14866636, 22737208, 29733272, 36947963, 45474416, 48316567, 59466544, 73895926, 90948832, 96633134, 118933088, 147791852, 193266268, 295583704, 386532536, 591167408, 628115371, 773065072, 1182334816, 1256230742, 1546130144, 2512461484, 5024922968, 10049845936, 20099691872]

約数ペア:

[(1, 20099691872), (2, 10049845936), (4, 5024922968), (8, 2512461484), (13, 1546130144), (16, 1256230742), (17, 1182334816), (26, 773065072), (32, 628115371), (34, 591167408), (52, 386532536), (68, 295583704), (104, 193266268), (136, 147791852), (169, 118933088), (208, 96633134), (221, 90948832), (272, 73895926), (338, 59466544), (416, 48316567), (442, 45474416), (544, 36947963), (676, 29733272), (884, 22737208), (1352, 14866636), (1768, 11368604), (2704, 7433318), (2873, 6996064), (3536, 5684302), (5408, 3716659), (5746, 3498032), (7072, 2842151), (11492, 1749016), (22984, 874508), (45968, 437254), (91936, 218627)]