20191500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{641}}^1$

素因数の和:673

約数の個数: 144

約数和(自身を含む): 72910656

約数和(自身を除く): 52719156

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 641, 700, 750, 875, 900, 1050, 1125, 1260, 1282, 1500, 1575, 1750, 1923, 2100, 2250, 2564, 2625, 3150, 3205, 3500, 3846, 4487, 4500, 5250, 5769, 6300, 6410, 7692, 7875, 8974, 9615, 10500, 11538, 12820, 13461, 15750, 16025, 17948, 19230, 22435, 23076, 26922, 28845, 31500, 32050, 38460, 40383, 44870, 48075, 53844, 57690, 64100, 67305, 80125, 80766, 89740, 96150, 112175, 115380, 134610, 144225, 160250, 161532, 192300, 201915, 224350, 240375, 269220, 288450, 320500, 336525, 403830, 448700, 480750, 560875, 576900, 673050, 721125, 807660, 961500, 1009575, 1121750, 1346100, 1442250, 1682625, 2019150, 2243500, 2884500, 3365250, 4038300, 5047875, 6730500, 10095750, 20191500]

約数ペア:

[(1, 20191500), (2, 10095750), (3, 6730500), (4, 5047875), (5, 4038300), (6, 3365250), (7, 2884500), (9, 2243500), (10, 2019150), (12, 1682625), (14, 1442250), (15, 1346100), (18, 1121750), (20, 1009575), (21, 961500), (25, 807660), (28, 721125), (30, 673050), (35, 576900), (36, 560875), (42, 480750), (45, 448700), (50, 403830), (60, 336525), (63, 320500), (70, 288450), (75, 269220), (84, 240375), (90, 224350), (100, 201915), (105, 192300), (125, 161532), (126, 160250), (140, 144225), (150, 134610), (175, 115380), (180, 112175), (210, 96150), (225, 89740), (250, 80766), (252, 80125), (300, 67305), (315, 64100), (350, 57690), (375, 53844), (420, 48075), (450, 44870), (500, 40383), (525, 38460), (630, 32050), (641, 31500), (700, 28845), (750, 26922), (875, 23076), (900, 22435), (1050, 19230), (1125, 17948), (1260, 16025), (1282, 15750), (1500, 13461), (1575, 12820), (1750, 11538), (1923, 10500), (2100, 9615), (2250, 8974), (2564, 7875), (2625, 7692), (3150, 6410), (3205, 6300), (3500, 5769), (3846, 5250), (4487, 4500)]