640472560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{87977}}^1$

素因数の和:88010

約数の個数: 80

約数和(自身を含む): 1832757696

約数和(自身を除く): 1192285136

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 87977, 175954, 351908, 439885, 615839, 703816, 879770, 1143701, 1231678, 1407632, 1759540, 2287402, 2463356, 3079195, 3519080, 4574804, 4926712, 5718505, 6158390, 7038160, 8005907, 9149608, 9853424, 11437010, 12316780, 16011814, 18299216, 22874020, 24633560, 32023628, 40029535, 45748040, 49267120, 64047256, 80059070, 91496080, 128094512, 160118140, 320236280, 640472560]

約数ペア:

[(1, 640472560), (2, 320236280), (4, 160118140), (5, 128094512), (7, 91496080), (8, 80059070), (10, 64047256), (13, 49267120), (14, 45748040), (16, 40029535), (20, 32023628), (26, 24633560), (28, 22874020), (35, 18299216), (40, 16011814), (52, 12316780), (56, 11437010), (65, 9853424), (70, 9149608), (80, 8005907), (91, 7038160), (104, 6158390), (112, 5718505), (130, 4926712), (140, 4574804), (182, 3519080), (208, 3079195), (260, 2463356), (280, 2287402), (364, 1759540), (455, 1407632), (520, 1231678), (560, 1143701), (728, 879770), (910, 703816), (1040, 615839), (1456, 439885), (1820, 351908), (3640, 175954), (7280, 87977)]