209125980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{617}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 728844480

約数和(自身を除く): 519718500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 269, 315, 420, 538, 617, 630, 807, 1076, 1234, 1260, 1345, 1614, 1851, 1883, 2421, 2468, 2690, 3085, 3228, 3702, 3766, 4035, 4319, 4842, 5380, 5553, 5649, 6170, 7404, 7532, 8070, 8638, 9255, 9415, 9684, 11106, 11298, 12105, 12340, 12957, 16140, 16947, 17276, 18510, 18830, 21595, 22212, 22596, 24210, 25914, 27765, 28245, 33894, 37020, 37660, 38871, 43190, 48420, 51828, 55530, 56490, 64785, 67788, 77742, 84735, 86380, 111060, 112980, 129570, 155484, 165973, 169470, 194355, 259140, 331946, 338940, 388710, 497919, 663892, 777420, 829865, 995838, 1161811, 1493757, 1659730, 1991676, 2323622, 2489595, 2987514, 3319460, 3485433, 4647244, 4979190, 5809055, 5975028, 6970866, 7468785, 9958380, 10456299, 11618110, 13941732, 14937570, 17427165, 20912598, 23236220, 29875140, 34854330, 41825196, 52281495, 69708660, 104562990, 209125980]

約数ペア:

[(1, 209125980), (2, 104562990), (3, 69708660), (4, 52281495), (5, 41825196), (6, 34854330), (7, 29875140), (9, 23236220), (10, 20912598), (12, 17427165), (14, 14937570), (15, 13941732), (18, 11618110), (20, 10456299), (21, 9958380), (28, 7468785), (30, 6970866), (35, 5975028), (36, 5809055), (42, 4979190), (45, 4647244), (60, 3485433), (63, 3319460), (70, 2987514), (84, 2489595), (90, 2323622), (105, 1991676), (126, 1659730), (140, 1493757), (180, 1161811), (210, 995838), (252, 829865), (269, 777420), (315, 663892), (420, 497919), (538, 388710), (617, 338940), (630, 331946), (807, 259140), (1076, 194355), (1234, 169470), (1260, 165973), (1345, 155484), (1614, 129570), (1851, 112980), (1883, 111060), (2421, 86380), (2468, 84735), (2690, 77742), (3085, 67788), (3228, 64785), (3702, 56490), (3766, 55530), (4035, 51828), (4319, 48420), (4842, 43190), (5380, 38871), (5553, 37660), (5649, 37020), (6170, 33894), (7404, 28245), (7532, 27765), (8070, 25914), (8638, 24210), (9255, 22596), (9415, 22212), (9684, 21595), (11106, 18830), (11298, 18510), (12105, 17276), (12340, 16947), (12957, 16140)]