28741900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 75932640

約数和(自身を除く): 47190740

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 29, 34, 44, 50, 53, 55, 58, 68, 85, 100, 106, 110, 116, 145, 170, 187, 212, 220, 265, 275, 290, 319, 340, 374, 425, 493, 530, 550, 580, 583, 638, 725, 748, 850, 901, 935, 986, 1060, 1100, 1166, 1276, 1325, 1450, 1537, 1595, 1700, 1802, 1870, 1972, 2332, 2465, 2650, 2900, 2915, 3074, 3190, 3604, 3740, 4505, 4675, 4930, 5300, 5423, 5830, 6148, 6380, 7685, 7975, 9010, 9350, 9860, 9911, 10846, 11660, 12325, 14575, 15370, 15950, 16907, 18020, 18700, 19822, 21692, 22525, 24650, 26129, 27115, 29150, 30740, 31900, 33814, 38425, 39644, 45050, 49300, 49555, 52258, 54230, 58300, 67628, 76850, 84535, 90100, 99110, 104516, 108460, 130645, 135575, 153700, 169070, 198220, 247775, 261290, 271150, 287419, 338140, 422675, 495550, 522580, 542300, 574838, 653225, 845350, 991100, 1149676, 1306450, 1437095, 1690700, 2612900, 2874190, 5748380, 7185475, 14370950, 28741900]

約数ペア:

[(1, 28741900), (2, 14370950), (4, 7185475), (5, 5748380), (10, 2874190), (11, 2612900), (17, 1690700), (20, 1437095), (22, 1306450), (25, 1149676), (29, 991100), (34, 845350), (44, 653225), (50, 574838), (53, 542300), (55, 522580), (58, 495550), (68, 422675), (85, 338140), (100, 287419), (106, 271150), (110, 261290), (116, 247775), (145, 198220), (170, 169070), (187, 153700), (212, 135575), (220, 130645), (265, 108460), (275, 104516), (290, 99110), (319, 90100), (340, 84535), (374, 76850), (425, 67628), (493, 58300), (530, 54230), (550, 52258), (580, 49555), (583, 49300), (638, 45050), (725, 39644), (748, 38425), (850, 33814), (901, 31900), (935, 30740), (986, 29150), (1060, 27115), (1100, 26129), (1166, 24650), (1276, 22525), (1325, 21692), (1450, 19822), (1537, 18700), (1595, 18020), (1700, 16907), (1802, 15950), (1870, 15370), (1972, 14575), (2332, 12325), (2465, 11660), (2650, 10846), (2900, 9911), (2915, 9860), (3074, 9350), (3190, 9010), (3604, 7975), (3740, 7685), (4505, 6380), (4675, 6148), (4930, 5830), (5300, 5423)]