20116820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 24759340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 317, 334, 380, 634, 668, 835, 1268, 1585, 1670, 3170, 3173, 3340, 6023, 6340, 6346, 12046, 12692, 15865, 24092, 30115, 31730, 52939, 60230, 63460, 105878, 120460, 211756, 264695, 529390, 1005841, 1058780, 2011682, 4023364, 5029205, 10058410, 20116820]

約数ペア:

[(1, 20116820), (2, 10058410), (4, 5029205), (5, 4023364), (10, 2011682), (19, 1058780), (20, 1005841), (38, 529390), (76, 264695), (95, 211756), (167, 120460), (190, 105878), (317, 63460), (334, 60230), (380, 52939), (634, 31730), (668, 30115), (835, 24092), (1268, 15865), (1585, 12692), (1670, 12046), (3170, 6346), (3173, 6340), (3340, 6023)]