81655600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:455

約数の個数: 120

約数和(自身を含む): 216986112

約数和(自身を除く): 135330512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 41, 50, 52, 65, 80, 82, 100, 104, 130, 164, 200, 205, 208, 260, 325, 328, 383, 400, 410, 520, 533, 650, 656, 766, 820, 1025, 1040, 1066, 1300, 1532, 1640, 1915, 2050, 2132, 2600, 2665, 3064, 3280, 3830, 4100, 4264, 4979, 5200, 5330, 6128, 7660, 8200, 8528, 9575, 9958, 10660, 13325, 15320, 15703, 16400, 19150, 19916, 21320, 24895, 26650, 30640, 31406, 38300, 39832, 42640, 49790, 53300, 62812, 76600, 78515, 79664, 99580, 106600, 124475, 125624, 153200, 157030, 199160, 204139, 213200, 248950, 251248, 314060, 392575, 398320, 408278, 497900, 628120, 785150, 816556, 995800, 1020695, 1256240, 1570300, 1633112, 1991600, 2041390, 3140600, 3266224, 4082780, 5103475, 6281200, 8165560, 10206950, 16331120, 20413900, 40827800, 81655600]

約数ペア:

[(1, 81655600), (2, 40827800), (4, 20413900), (5, 16331120), (8, 10206950), (10, 8165560), (13, 6281200), (16, 5103475), (20, 4082780), (25, 3266224), (26, 3140600), (40, 2041390), (41, 1991600), (50, 1633112), (52, 1570300), (65, 1256240), (80, 1020695), (82, 995800), (100, 816556), (104, 785150), (130, 628120), (164, 497900), (200, 408278), (205, 398320), (208, 392575), (260, 314060), (325, 251248), (328, 248950), (383, 213200), (400, 204139), (410, 199160), (520, 157030), (533, 153200), (650, 125624), (656, 124475), (766, 106600), (820, 99580), (1025, 79664), (1040, 78515), (1066, 76600), (1300, 62812), (1532, 53300), (1640, 49790), (1915, 42640), (2050, 39832), (2132, 38300), (2600, 31406), (2665, 30640), (3064, 26650), (3280, 24895), (3830, 21320), (4100, 19916), (4264, 19150), (4979, 16400), (5200, 15703), (5330, 15320), (6128, 13325), (7660, 10660), (8200, 9958), (8528, 9575)]