1213281940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2053}}^1\times {\mathrm{2273}}^1$

素因数の和:4348

約数の個数: 48

約数和(自身を含む): 2746428048

約数和(自身を除く): 1533146108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2053, 2273, 4106, 4546, 8212, 9092, 10265, 11365, 20530, 22730, 26689, 29549, 41060, 45460, 53378, 59098, 106756, 118196, 133445, 147745, 266890, 295490, 533780, 590980, 4666469, 9332938, 18665876, 23332345, 46664690, 60664097, 93329380, 121328194, 242656388, 303320485, 606640970, 1213281940]

約数ペア:

[(1, 1213281940), (2, 606640970), (4, 303320485), (5, 242656388), (10, 121328194), (13, 93329380), (20, 60664097), (26, 46664690), (52, 23332345), (65, 18665876), (130, 9332938), (260, 4666469), (2053, 590980), (2273, 533780), (4106, 295490), (4546, 266890), (8212, 147745), (9092, 133445), (10265, 118196), (11365, 106756), (20530, 59098), (22730, 53378), (26689, 45460), (29549, 41060)]