21441500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 51455040

約数和(自身を除く): 30013540

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 61, 74, 76, 95, 100, 122, 125, 148, 185, 190, 244, 250, 305, 370, 380, 475, 500, 610, 703, 740, 925, 950, 1159, 1220, 1406, 1525, 1850, 1900, 2257, 2318, 2375, 2812, 3050, 3515, 3700, 4514, 4625, 4636, 4750, 5795, 6100, 7030, 7625, 9028, 9250, 9500, 11285, 11590, 14060, 15250, 17575, 18500, 22570, 23180, 28975, 30500, 35150, 42883, 45140, 56425, 57950, 70300, 85766, 87875, 112850, 115900, 144875, 171532, 175750, 214415, 225700, 282125, 289750, 351500, 428830, 564250, 579500, 857660, 1072075, 1128500, 2144150, 4288300, 5360375, 10720750, 21441500]

約数ペア:

[(1, 21441500), (2, 10720750), (4, 5360375), (5, 4288300), (10, 2144150), (19, 1128500), (20, 1072075), (25, 857660), (37, 579500), (38, 564250), (50, 428830), (61, 351500), (74, 289750), (76, 282125), (95, 225700), (100, 214415), (122, 175750), (125, 171532), (148, 144875), (185, 115900), (190, 112850), (244, 87875), (250, 85766), (305, 70300), (370, 57950), (380, 56425), (475, 45140), (500, 42883), (610, 35150), (703, 30500), (740, 28975), (925, 23180), (950, 22570), (1159, 18500), (1220, 17575), (1406, 15250), (1525, 14060), (1850, 11590), (1900, 11285), (2257, 9500), (2318, 9250), (2375, 9028), (2812, 7625), (3050, 7030), (3515, 6100), (3700, 5795), (4514, 4750), (4625, 4636)]