19545540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 43595580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 173, 210, 269, 346, 420, 519, 538, 692, 807, 865, 1038, 1076, 1211, 1345, 1614, 1730, 1883, 2076, 2422, 2595, 2690, 3228, 3460, 3633, 3766, 4035, 4844, 5190, 5380, 5649, 6055, 7266, 7532, 8070, 9415, 10380, 11298, 12110, 14532, 16140, 18165, 18830, 22596, 24220, 28245, 36330, 37660, 46537, 56490, 72660, 93074, 112980, 139611, 186148, 232685, 279222, 325759, 465370, 558444, 651518, 698055, 930740, 977277, 1303036, 1396110, 1628795, 1954554, 2792220, 3257590, 3909108, 4886385, 6515180, 9772770, 19545540]

約数ペア:

[(1, 19545540), (2, 9772770), (3, 6515180), (4, 4886385), (5, 3909108), (6, 3257590), (7, 2792220), (10, 1954554), (12, 1628795), (14, 1396110), (15, 1303036), (20, 977277), (21, 930740), (28, 698055), (30, 651518), (35, 558444), (42, 465370), (60, 325759), (70, 279222), (84, 232685), (105, 186148), (140, 139611), (173, 112980), (210, 93074), (269, 72660), (346, 56490), (420, 46537), (519, 37660), (538, 36330), (692, 28245), (807, 24220), (865, 22596), (1038, 18830), (1076, 18165), (1211, 16140), (1345, 14532), (1614, 12110), (1730, 11298), (1883, 10380), (2076, 9415), (2422, 8070), (2595, 7532), (2690, 7266), (3228, 6055), (3460, 5649), (3633, 5380), (3766, 5190), (4035, 4844)]