19970240

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3671}}^1$

素因数の和:3705

約数の個数: 56

約数和(自身を含む): 50365152

約数和(自身を除く): 30394912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3671, 5440, 7342, 14684, 18355, 29368, 36710, 58736, 62407, 73420, 117472, 124814, 146840, 234944, 249628, 293680, 312035, 499256, 587360, 624070, 998512, 1174720, 1248140, 1997024, 2496280, 3994048, 4992560, 9985120, 19970240]

約数ペア:

[(1, 19970240), (2, 9985120), (4, 4992560), (5, 3994048), (8, 2496280), (10, 1997024), (16, 1248140), (17, 1174720), (20, 998512), (32, 624070), (34, 587360), (40, 499256), (64, 312035), (68, 293680), (80, 249628), (85, 234944), (136, 146840), (160, 124814), (170, 117472), (272, 73420), (320, 62407), (340, 58736), (544, 36710), (680, 29368), (1088, 18355), (1360, 14684), (2720, 7342), (3671, 5440)]