201899990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 400075200

約数和(自身を除く): 198175210

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 83, 85, 166, 170, 205, 349, 410, 415, 697, 698, 830, 1394, 1411, 1745, 2822, 3403, 3485, 3490, 5933, 6806, 6970, 7055, 11866, 14110, 14309, 17015, 28618, 28967, 29665, 34030, 57851, 57934, 59330, 71545, 115702, 143090, 144835, 243253, 289255, 289670, 486506, 492439, 578510, 984878, 1187647, 1216265, 2375294, 2432530, 2462195, 4924390, 5938235, 11876470, 20189999, 40379998, 100949995, 201899990]

約数ペア:

[(1, 201899990), (2, 100949995), (5, 40379998), (10, 20189999), (17, 11876470), (34, 5938235), (41, 4924390), (82, 2462195), (83, 2432530), (85, 2375294), (166, 1216265), (170, 1187647), (205, 984878), (349, 578510), (410, 492439), (415, 486506), (697, 289670), (698, 289255), (830, 243253), (1394, 144835), (1411, 143090), (1745, 115702), (2822, 71545), (3403, 59330), (3485, 57934), (3490, 57851), (5933, 34030), (6806, 29665), (6970, 28967), (7055, 28618), (11866, 17015), (14110, 14309)]