988470140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{19031}}^1$

素因数の和:19107

約数の個数: 72

約数和(自身を含む): 2460380832

約数和(自身を除く): 1471910692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 265, 371, 490, 530, 742, 980, 1060, 1484, 1855, 2597, 3710, 5194, 7420, 10388, 12985, 19031, 25970, 38062, 51940, 76124, 95155, 133217, 190310, 266434, 380620, 532868, 666085, 932519, 1008643, 1332170, 1865038, 2017286, 2664340, 3730076, 4034572, 4662595, 5043215, 7060501, 9325190, 10086430, 14121002, 18650380, 20172860, 28242004, 35302505, 49423507, 70605010, 98847014, 141210020, 197694028, 247117535, 494235070, 988470140]

約数ペア:

[(1, 988470140), (2, 494235070), (4, 247117535), (5, 197694028), (7, 141210020), (10, 98847014), (14, 70605010), (20, 49423507), (28, 35302505), (35, 28242004), (49, 20172860), (53, 18650380), (70, 14121002), (98, 10086430), (106, 9325190), (140, 7060501), (196, 5043215), (212, 4662595), (245, 4034572), (265, 3730076), (371, 2664340), (490, 2017286), (530, 1865038), (742, 1332170), (980, 1008643), (1060, 932519), (1484, 666085), (1855, 532868), (2597, 380620), (3710, 266434), (5194, 190310), (7420, 133217), (10388, 95155), (12985, 76124), (19031, 51940), (25970, 38062)]