17639980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 39684960

約数和(自身を除く): 22044980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 761, 1159, 1220, 1522, 2318, 3044, 3805, 4636, 5795, 7610, 11590, 14459, 15220, 23180, 28918, 46421, 57836, 72295, 92842, 144590, 185684, 232105, 289180, 464210, 881999, 928420, 1763998, 3527996, 4409995, 8819990, 17639980]

約数ペア:

[(1, 17639980), (2, 8819990), (4, 4409995), (5, 3527996), (10, 1763998), (19, 928420), (20, 881999), (38, 464210), (61, 289180), (76, 232105), (95, 185684), (122, 144590), (190, 92842), (244, 72295), (305, 57836), (380, 46421), (610, 28918), (761, 23180), (1159, 15220), (1220, 14459), (1522, 11590), (2318, 7610), (3044, 5795), (3805, 4636)]