201231280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3229}}^1$

素因数の和:3302

約数の個数: 80

約数和(自身を含む): 504655200

約数和(自身を除く): 303423920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1520, 1558, 1640, 3116, 3229, 3280, 3895, 6232, 6458, 7790, 12464, 12916, 15580, 16145, 25832, 31160, 32290, 51664, 61351, 62320, 64580, 122702, 129160, 132389, 245404, 258320, 264778, 306755, 490808, 529556, 613510, 661945, 981616, 1059112, 1227020, 1323890, 2118224, 2454040, 2515391, 2647780, 4908080, 5030782, 5295560, 10061564, 10591120, 12576955, 20123128, 25153910, 40246256, 50307820, 100615640, 201231280]

約数ペア:

[(1, 201231280), (2, 100615640), (4, 50307820), (5, 40246256), (8, 25153910), (10, 20123128), (16, 12576955), (19, 10591120), (20, 10061564), (38, 5295560), (40, 5030782), (41, 4908080), (76, 2647780), (80, 2515391), (82, 2454040), (95, 2118224), (152, 1323890), (164, 1227020), (190, 1059112), (205, 981616), (304, 661945), (328, 613510), (380, 529556), (410, 490808), (656, 306755), (760, 264778), (779, 258320), (820, 245404), (1520, 132389), (1558, 129160), (1640, 122702), (3116, 64580), (3229, 62320), (3280, 61351), (3895, 51664), (6232, 32290), (6458, 31160), (7790, 25832), (12464, 16145), (12916, 15580)]