72405040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53239}}^1$

素因数の和:53269

約数の個数: 40

約数和(自身を含む): 178247520

約数和(自身を除く): 105842480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 53239, 106478, 212956, 266195, 425912, 532390, 851824, 905063, 1064780, 1810126, 2129560, 3620252, 4259120, 4525315, 7240504, 9050630, 14481008, 18101260, 36202520, 72405040]

約数ペア:

[(1, 72405040), (2, 36202520), (4, 18101260), (5, 14481008), (8, 9050630), (10, 7240504), (16, 4525315), (17, 4259120), (20, 3620252), (34, 2129560), (40, 1810126), (68, 1064780), (80, 905063), (85, 851824), (136, 532390), (170, 425912), (272, 266195), (340, 212956), (680, 106478), (1360, 53239)]