20218453940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1\times {\mathrm{2591}}^1$

素因数の和:3065

約数の個数: 96

約数和(自身を含む): 45853516800

約数和(自身を除く): 25635062860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 389, 590, 778, 1003, 1180, 1556, 1945, 2006, 2591, 3890, 4012, 5015, 5182, 6613, 7780, 10030, 10364, 12955, 13226, 20060, 22951, 25910, 26452, 33065, 44047, 45902, 51820, 66130, 88094, 91804, 114755, 132260, 152869, 176188, 220235, 229510, 305738, 390167, 440470, 459020, 611476, 764345, 780334, 880940, 1007899, 1528690, 1560668, 1950835, 2015798, 2598773, 3057380, 3901670, 4031596, 5039495, 5197546, 7803340, 10078990, 10395092, 12993865, 17134283, 20157980, 25987730, 34268566, 51975460, 59466041, 68537132, 85671415, 118932082, 171342830, 237864164, 297330205, 342685660, 594660410, 1010922697, 1189320820, 2021845394, 4043690788, 5054613485, 10109226970, 20218453940]

約数ペア:

[(1, 20218453940), (2, 10109226970), (4, 5054613485), (5, 4043690788), (10, 2021845394), (17, 1189320820), (20, 1010922697), (34, 594660410), (59, 342685660), (68, 297330205), (85, 237864164), (118, 171342830), (170, 118932082), (236, 85671415), (295, 68537132), (340, 59466041), (389, 51975460), (590, 34268566), (778, 25987730), (1003, 20157980), (1180, 17134283), (1556, 12993865), (1945, 10395092), (2006, 10078990), (2591, 7803340), (3890, 5197546), (4012, 5039495), (5015, 4031596), (5182, 3901670), (6613, 3057380), (7780, 2598773), (10030, 2015798), (10364, 1950835), (12955, 1560668), (13226, 1528690), (20060, 1007899), (22951, 880940), (25910, 780334), (26452, 764345), (33065, 611476), (44047, 459020), (45902, 440470), (51820, 390167), (66130, 305738), (88094, 229510), (91804, 220235), (114755, 176188), (132260, 152869)]