19650700

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 45122112

約数和(自身を除く): 25471412

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 47, 50, 74, 94, 100, 113, 148, 185, 188, 226, 235, 370, 452, 470, 565, 740, 925, 940, 1130, 1175, 1739, 1850, 2260, 2350, 2825, 3478, 3700, 4181, 4700, 5311, 5650, 6956, 8362, 8695, 10622, 11300, 16724, 17390, 20905, 21244, 26555, 34780, 41810, 43475, 53110, 83620, 86950, 104525, 106220, 132775, 173900, 196507, 209050, 265550, 393014, 418100, 531100, 786028, 982535, 1965070, 3930140, 4912675, 9825350, 19650700]

約数ペア:

[(1, 19650700), (2, 9825350), (4, 4912675), (5, 3930140), (10, 1965070), (20, 982535), (25, 786028), (37, 531100), (47, 418100), (50, 393014), (74, 265550), (94, 209050), (100, 196507), (113, 173900), (148, 132775), (185, 106220), (188, 104525), (226, 86950), (235, 83620), (370, 53110), (452, 43475), (470, 41810), (565, 34780), (740, 26555), (925, 21244), (940, 20905), (1130, 17390), (1175, 16724), (1739, 11300), (1850, 10622), (2260, 8695), (2350, 8362), (2825, 6956), (3478, 5650), (3700, 5311), (4181, 4700)]