18378990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{29173}}^1$

素因数の和:29193

約数の個数: 48

約数和(自身を含む): 54613728

約数和(自身を除く): 36234738

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 29173, 58346, 87519, 145865, 175038, 204211, 262557, 291730, 408422, 437595, 525114, 612633, 875190, 1021055, 1225266, 1312785, 1837899, 2042110, 2625570, 3063165, 3675798, 6126330, 9189495, 18378990]

約数ペア:

[(1, 18378990), (2, 9189495), (3, 6126330), (5, 3675798), (6, 3063165), (7, 2625570), (9, 2042110), (10, 1837899), (14, 1312785), (15, 1225266), (18, 1021055), (21, 875190), (30, 612633), (35, 525114), (42, 437595), (45, 408422), (63, 291730), (70, 262557), (90, 204211), (105, 175038), (126, 145865), (210, 87519), (315, 58346), (630, 29173)]