31131100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 90994176

約数和(自身を除く): 59863076

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 130, 140, 143, 154, 175, 182, 220, 260, 275, 286, 308, 311, 325, 350, 364, 385, 455, 550, 572, 622, 650, 700, 715, 770, 910, 1001, 1100, 1244, 1300, 1430, 1540, 1555, 1820, 1925, 2002, 2177, 2275, 2860, 3110, 3421, 3575, 3850, 4004, 4043, 4354, 4550, 5005, 6220, 6842, 7150, 7700, 7775, 8086, 8708, 9100, 10010, 10885, 13684, 14300, 15550, 16172, 17105, 20020, 20215, 21770, 23947, 25025, 28301, 31100, 34210, 40430, 43540, 44473, 47894, 50050, 54425, 56602, 68420, 80860, 85525, 88946, 95788, 100100, 101075, 108850, 113204, 119735, 141505, 171050, 177892, 202150, 217700, 222365, 239470, 283010, 311311, 342100, 404300, 444730, 478940, 566020, 598675, 622622, 707525, 889460, 1111825, 1197350, 1245244, 1415050, 1556555, 2223650, 2394700, 2830100, 3113110, 4447300, 6226220, 7782775, 15565550, 31131100]

約数ペア:

[(1, 31131100), (2, 15565550), (4, 7782775), (5, 6226220), (7, 4447300), (10, 3113110), (11, 2830100), (13, 2394700), (14, 2223650), (20, 1556555), (22, 1415050), (25, 1245244), (26, 1197350), (28, 1111825), (35, 889460), (44, 707525), (50, 622622), (52, 598675), (55, 566020), (65, 478940), (70, 444730), (77, 404300), (91, 342100), (100, 311311), (110, 283010), (130, 239470), (140, 222365), (143, 217700), (154, 202150), (175, 177892), (182, 171050), (220, 141505), (260, 119735), (275, 113204), (286, 108850), (308, 101075), (311, 100100), (325, 95788), (350, 88946), (364, 85525), (385, 80860), (455, 68420), (550, 56602), (572, 54425), (622, 50050), (650, 47894), (700, 44473), (715, 43540), (770, 40430), (910, 34210), (1001, 31100), (1100, 28301), (1244, 25025), (1300, 23947), (1430, 21770), (1540, 20215), (1555, 20020), (1820, 17105), (1925, 16172), (2002, 15550), (2177, 14300), (2275, 13684), (2860, 10885), (3110, 10010), (3421, 9100), (3575, 8708), (3850, 8086), (4004, 7775), (4043, 7700), (4354, 7150), (4550, 6842), (5005, 6220)]