387845860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{2693}}^1$

素因数の和:3100

約数の個数: 48

約数和(自身を含む): 859924800

約数和(自身を除く): 472078940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 379, 380, 758, 1516, 1895, 2693, 3790, 5386, 7201, 7580, 10772, 13465, 14402, 26930, 28804, 36005, 51167, 53860, 72010, 102334, 144020, 204668, 255835, 511670, 1020647, 1023340, 2041294, 4082588, 5103235, 10206470, 19392293, 20412940, 38784586, 77569172, 96961465, 193922930, 387845860]

約数ペア:

[(1, 387845860), (2, 193922930), (4, 96961465), (5, 77569172), (10, 38784586), (19, 20412940), (20, 19392293), (38, 10206470), (76, 5103235), (95, 4082588), (190, 2041294), (379, 1023340), (380, 1020647), (758, 511670), (1516, 255835), (1895, 204668), (2693, 144020), (3790, 102334), (5386, 72010), (7201, 53860), (7580, 51167), (10772, 36005), (13465, 28804), (14402, 26930)]