19900620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:424

約数の個数: 96

約数和(自身を含む): 62596800

約数和(自身を除く): 42696180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 137, 180, 269, 270, 274, 411, 538, 540, 548, 685, 807, 822, 1076, 1233, 1345, 1370, 1614, 1644, 2055, 2421, 2466, 2690, 2740, 3228, 3699, 4035, 4110, 4842, 4932, 5380, 6165, 7263, 7398, 8070, 8220, 9684, 12105, 12330, 14526, 14796, 16140, 18495, 24210, 24660, 29052, 36315, 36853, 36990, 48420, 72630, 73706, 73980, 110559, 145260, 147412, 184265, 221118, 331677, 368530, 442236, 552795, 663354, 737060, 995031, 1105590, 1326708, 1658385, 1990062, 2211180, 3316770, 3980124, 4975155, 6633540, 9950310, 19900620]

約数ペア:

[(1, 19900620), (2, 9950310), (3, 6633540), (4, 4975155), (5, 3980124), (6, 3316770), (9, 2211180), (10, 1990062), (12, 1658385), (15, 1326708), (18, 1105590), (20, 995031), (27, 737060), (30, 663354), (36, 552795), (45, 442236), (54, 368530), (60, 331677), (90, 221118), (108, 184265), (135, 147412), (137, 145260), (180, 110559), (269, 73980), (270, 73706), (274, 72630), (411, 48420), (538, 36990), (540, 36853), (548, 36315), (685, 29052), (807, 24660), (822, 24210), (1076, 18495), (1233, 16140), (1345, 14796), (1370, 14526), (1614, 12330), (1644, 12105), (2055, 9684), (2421, 8220), (2466, 8070), (2690, 7398), (2740, 7263), (3228, 6165), (3699, 5380), (4035, 4932), (4110, 4842)]