28215550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 72

約数和(自身を含む): 60266232

約数和(自身を除く): 32050682

約数列:

[1, 2, 5, 10, 11, 22, 25, 29, 50, 55, 58, 61, 110, 122, 145, 275, 290, 305, 319, 550, 610, 638, 671, 725, 841, 1342, 1450, 1525, 1595, 1682, 1769, 3050, 3190, 3355, 3538, 4205, 6710, 7975, 8410, 8845, 9251, 15950, 16775, 17690, 18502, 19459, 21025, 33550, 38918, 42050, 44225, 46255, 51301, 88450, 92510, 97295, 102602, 194590, 231275, 256505, 462550, 486475, 513010, 564311, 972950, 1128622, 1282525, 2565050, 2821555, 5643110, 14107775, 28215550]

約数ペア:

[(1, 28215550), (2, 14107775), (5, 5643110), (10, 2821555), (11, 2565050), (22, 1282525), (25, 1128622), (29, 972950), (50, 564311), (55, 513010), (58, 486475), (61, 462550), (110, 256505), (122, 231275), (145, 194590), (275, 102602), (290, 97295), (305, 92510), (319, 88450), (550, 51301), (610, 46255), (638, 44225), (671, 42050), (725, 38918), (841, 33550), (1342, 21025), (1450, 19459), (1525, 18502), (1595, 17690), (1682, 16775), (1769, 15950), (3050, 9251), (3190, 8845), (3355, 8410), (3538, 7975), (4205, 6710)]