28583980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 65672208

約数和(自身を除く): 37088228

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 107, 148, 185, 190, 214, 361, 370, 380, 428, 535, 703, 722, 740, 1070, 1406, 1444, 1805, 2033, 2140, 2812, 3515, 3610, 3959, 4066, 7030, 7220, 7918, 8132, 10165, 13357, 14060, 15836, 19795, 20330, 26714, 38627, 39590, 40660, 53428, 66785, 75221, 77254, 79180, 133570, 150442, 154508, 193135, 267140, 300884, 376105, 386270, 752210, 772540, 1429199, 1504420, 2858398, 5716796, 7145995, 14291990, 28583980]

約数ペア:

[(1, 28583980), (2, 14291990), (4, 7145995), (5, 5716796), (10, 2858398), (19, 1504420), (20, 1429199), (37, 772540), (38, 752210), (74, 386270), (76, 376105), (95, 300884), (107, 267140), (148, 193135), (185, 154508), (190, 150442), (214, 133570), (361, 79180), (370, 77254), (380, 75221), (428, 66785), (535, 53428), (703, 40660), (722, 39590), (740, 38627), (1070, 26714), (1406, 20330), (1444, 19795), (1805, 15836), (2033, 14060), (2140, 13357), (2812, 10165), (3515, 8132), (3610, 7918), (3959, 7220), (4066, 7030)]