19919850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{41}}^2\times {\mathrm{79}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 51276480

約数和(自身を除く): 31356630

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 41, 50, 75, 79, 82, 123, 150, 158, 205, 237, 246, 395, 410, 474, 615, 790, 1025, 1185, 1230, 1681, 1975, 2050, 2370, 3075, 3239, 3362, 3950, 5043, 5925, 6150, 6478, 8405, 9717, 10086, 11850, 16195, 16810, 19434, 25215, 32390, 42025, 48585, 50430, 80975, 84050, 97170, 126075, 132799, 161950, 242925, 252150, 265598, 398397, 485850, 663995, 796794, 1327990, 1991985, 3319975, 3983970, 6639950, 9959925, 19919850]

約数ペア:

[(1, 19919850), (2, 9959925), (3, 6639950), (5, 3983970), (6, 3319975), (10, 1991985), (15, 1327990), (25, 796794), (30, 663995), (41, 485850), (50, 398397), (75, 265598), (79, 252150), (82, 242925), (123, 161950), (150, 132799), (158, 126075), (205, 97170), (237, 84050), (246, 80975), (395, 50430), (410, 48585), (474, 42025), (615, 32390), (790, 25215), (1025, 19434), (1185, 16810), (1230, 16195), (1681, 11850), (1975, 10086), (2050, 9717), (2370, 8405), (3075, 6478), (3239, 6150), (3362, 5925), (3950, 5043)]