20893890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 53001216

約数和(自身を除く): 32107326

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 107, 115, 138, 214, 230, 283, 321, 345, 535, 566, 642, 690, 849, 1070, 1415, 1605, 1698, 2461, 2830, 3210, 4245, 4922, 6509, 7383, 8490, 12305, 13018, 14766, 19527, 24610, 30281, 32545, 36915, 39054, 60562, 65090, 73830, 90843, 97635, 151405, 181686, 195270, 302810, 454215, 696463, 908430, 1392926, 2089389, 3482315, 4178778, 6964630, 10446945, 20893890]

約数ペア:

[(1, 20893890), (2, 10446945), (3, 6964630), (5, 4178778), (6, 3482315), (10, 2089389), (15, 1392926), (23, 908430), (30, 696463), (46, 454215), (69, 302810), (107, 195270), (115, 181686), (138, 151405), (214, 97635), (230, 90843), (283, 73830), (321, 65090), (345, 60562), (535, 39054), (566, 36915), (642, 32545), (690, 30281), (849, 24610), (1070, 19527), (1415, 14766), (1605, 13018), (1698, 12305), (2461, 8490), (2830, 7383), (3210, 6509), (4245, 4922)]