18734950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:122

約数の個数: 96

約数和(自身を含む): 41559840

約数和(自身を除く): 22824890

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 37, 38, 41, 50, 65, 74, 82, 95, 130, 185, 190, 205, 247, 325, 370, 410, 475, 481, 494, 533, 650, 703, 779, 925, 950, 962, 1025, 1066, 1235, 1406, 1517, 1558, 1850, 2050, 2405, 2470, 2665, 3034, 3515, 3895, 4810, 5330, 6175, 7030, 7585, 7790, 9139, 10127, 12025, 12350, 13325, 15170, 17575, 18278, 19475, 19721, 20254, 24050, 26650, 28823, 35150, 37925, 38950, 39442, 45695, 50635, 57646, 75850, 91390, 98605, 101270, 144115, 197210, 228475, 253175, 288230, 374699, 456950, 493025, 506350, 720575, 749398, 986050, 1441150, 1873495, 3746990, 9367475, 18734950]

約数ペア:

[(1, 18734950), (2, 9367475), (5, 3746990), (10, 1873495), (13, 1441150), (19, 986050), (25, 749398), (26, 720575), (37, 506350), (38, 493025), (41, 456950), (50, 374699), (65, 288230), (74, 253175), (82, 228475), (95, 197210), (130, 144115), (185, 101270), (190, 98605), (205, 91390), (247, 75850), (325, 57646), (370, 50635), (410, 45695), (475, 39442), (481, 38950), (494, 37925), (533, 35150), (650, 28823), (703, 26650), (779, 24050), (925, 20254), (950, 19721), (962, 19475), (1025, 18278), (1066, 17575), (1235, 15170), (1406, 13325), (1517, 12350), (1558, 12025), (1850, 10127), (2050, 9139), (2405, 7790), (2470, 7585), (2665, 7030), (3034, 6175), (3515, 5330), (3895, 4810)]