18140980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6343}}^1$

素因数の和:6376

約数の個数: 48

約数和(自身を含む): 44763264

約数和(自身を除く): 26622284

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6343, 12686, 25372, 31715, 63430, 69773, 82459, 126860, 139546, 164918, 279092, 329836, 348865, 412295, 697730, 824590, 907049, 1395460, 1649180, 1814098, 3628196, 4535245, 9070490, 18140980]

約数ペア:

[(1, 18140980), (2, 9070490), (4, 4535245), (5, 3628196), (10, 1814098), (11, 1649180), (13, 1395460), (20, 907049), (22, 824590), (26, 697730), (44, 412295), (52, 348865), (55, 329836), (65, 279092), (110, 164918), (130, 139546), (143, 126860), (220, 82459), (260, 69773), (286, 63430), (572, 31715), (715, 25372), (1430, 12686), (2860, 6343)]