17815540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 39755520

約数和(自身を除く): 21939980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 271, 346, 380, 542, 692, 865, 1084, 1355, 1730, 2710, 3287, 3460, 5149, 5420, 6574, 10298, 13148, 16435, 20596, 25745, 32870, 46883, 51490, 65740, 93766, 102980, 187532, 234415, 468830, 890777, 937660, 1781554, 3563108, 4453885, 8907770, 17815540]

約数ペア:

[(1, 17815540), (2, 8907770), (4, 4453885), (5, 3563108), (10, 1781554), (19, 937660), (20, 890777), (38, 468830), (76, 234415), (95, 187532), (173, 102980), (190, 93766), (271, 65740), (346, 51490), (380, 46883), (542, 32870), (692, 25745), (865, 20596), (1084, 16435), (1355, 13148), (1730, 10298), (2710, 6574), (3287, 5420), (3460, 5149)]