490097920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29453}}^1$

素因数の和:29487

約数の個数: 72

約数和(自身を含む): 1264283496

約数和(自身を除く): 774185576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 29453, 58906, 117812, 147265, 235624, 294530, 382889, 471248, 589060, 765778, 942496, 1178120, 1531556, 1884992, 1914445, 2356240, 3063112, 3769984, 3828890, 4712480, 6126224, 7539968, 7657780, 9424960, 12252448, 15315560, 18849920, 24504896, 30631120, 37699840, 49009792, 61262240, 98019584, 122524480, 245048960, 490097920]

約数ペア:

[(1, 490097920), (2, 245048960), (4, 122524480), (5, 98019584), (8, 61262240), (10, 49009792), (13, 37699840), (16, 30631120), (20, 24504896), (26, 18849920), (32, 15315560), (40, 12252448), (52, 9424960), (64, 7657780), (65, 7539968), (80, 6126224), (104, 4712480), (128, 3828890), (130, 3769984), (160, 3063112), (208, 2356240), (256, 1914445), (260, 1884992), (320, 1531556), (416, 1178120), (520, 942496), (640, 765778), (832, 589060), (1040, 471248), (1280, 382889), (1664, 294530), (2080, 235624), (3328, 147265), (4160, 117812), (8320, 58906), (16640, 29453)]