20005978340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{52639}}^1$

素因数の和:53292

約数の個数: 48

約数和(自身を含む): 43439370240

約数和(自身を除く): 23433391900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 613, 620, 1226, 2452, 3065, 6130, 12260, 19003, 38006, 52639, 76012, 95015, 105278, 190030, 210556, 263195, 380060, 526390, 1052780, 1631809, 3263618, 6527236, 8159045, 16318090, 32267707, 32636180, 64535414, 129070828, 161338535, 322677070, 645354140, 1000298917, 2000597834, 4001195668, 5001494585, 10002989170, 20005978340]

約数ペア:

[(1, 20005978340), (2, 10002989170), (4, 5001494585), (5, 4001195668), (10, 2000597834), (20, 1000298917), (31, 645354140), (62, 322677070), (124, 161338535), (155, 129070828), (310, 64535414), (613, 32636180), (620, 32267707), (1226, 16318090), (2452, 8159045), (3065, 6527236), (6130, 3263618), (12260, 1631809), (19003, 1052780), (38006, 526390), (52639, 380060), (76012, 263195), (95015, 210556), (105278, 190030)]