18255380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 45378144

約数和(自身を除く): 27122764

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 220, 260, 286, 338, 491, 572, 676, 715, 845, 982, 1430, 1690, 1859, 1964, 2455, 2860, 3380, 3718, 4910, 5401, 6383, 7436, 9295, 9820, 10802, 12766, 18590, 21604, 25532, 27005, 31915, 37180, 54010, 63830, 70213, 82979, 108020, 127660, 140426, 165958, 280852, 331916, 351065, 414895, 702130, 829790, 912769, 1404260, 1659580, 1825538, 3651076, 4563845, 9127690, 18255380]

約数ペア:

[(1, 18255380), (2, 9127690), (4, 4563845), (5, 3651076), (10, 1825538), (11, 1659580), (13, 1404260), (20, 912769), (22, 829790), (26, 702130), (44, 414895), (52, 351065), (55, 331916), (65, 280852), (110, 165958), (130, 140426), (143, 127660), (169, 108020), (220, 82979), (260, 70213), (286, 63830), (338, 54010), (491, 37180), (572, 31915), (676, 27005), (715, 25532), (845, 21604), (982, 18590), (1430, 12766), (1690, 10802), (1859, 9820), (1964, 9295), (2455, 7436), (2860, 6383), (3380, 5401), (3718, 4910)]