20697206530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{42197}}^1$

素因数の和:42249

約数の個数: 128

約数和(自身を含む): 51042700800

約数和(自身を除く): 30345494270

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 49, 55, 65, 70, 77, 91, 98, 110, 130, 143, 154, 182, 245, 286, 343, 385, 455, 490, 539, 637, 686, 715, 770, 910, 1001, 1078, 1274, 1430, 1715, 2002, 2695, 3185, 3430, 3773, 4459, 5005, 5390, 6370, 7007, 7546, 8918, 10010, 14014, 18865, 22295, 35035, 37730, 42197, 44590, 49049, 70070, 84394, 98098, 210985, 245245, 295379, 421970, 464167, 490490, 548561, 590758, 928334, 1097122, 1476895, 2067653, 2320835, 2742805, 2953790, 3249169, 3839927, 4135306, 4641670, 5485610, 6034171, 6498338, 7679854, 10338265, 12068342, 14473571, 16245845, 19199635, 20676530, 22744183, 26879489, 28947142, 30170855, 32491690, 38399270, 42239197, 45488366, 53758978, 60341710, 72367855, 84478394, 113720915, 134397445, 144735710, 159209281, 188156423, 211195985, 227441830, 268794890, 295674379, 318418562, 376312846, 422391970, 591348758, 796046405, 940782115, 1478371895, 1592092810, 1881564230, 2069720653, 2956743790, 4139441306, 10348603265, 20697206530]

約数ペア:

[(1, 20697206530), (2, 10348603265), (5, 4139441306), (7, 2956743790), (10, 2069720653), (11, 1881564230), (13, 1592092810), (14, 1478371895), (22, 940782115), (26, 796046405), (35, 591348758), (49, 422391970), (55, 376312846), (65, 318418562), (70, 295674379), (77, 268794890), (91, 227441830), (98, 211195985), (110, 188156423), (130, 159209281), (143, 144735710), (154, 134397445), (182, 113720915), (245, 84478394), (286, 72367855), (343, 60341710), (385, 53758978), (455, 45488366), (490, 42239197), (539, 38399270), (637, 32491690), (686, 30170855), (715, 28947142), (770, 26879489), (910, 22744183), (1001, 20676530), (1078, 19199635), (1274, 16245845), (1430, 14473571), (1715, 12068342), (2002, 10338265), (2695, 7679854), (3185, 6498338), (3430, 6034171), (3773, 5485610), (4459, 4641670), (5005, 4135306), (5390, 3839927), (6370, 3249169), (7007, 2953790), (7546, 2742805), (8918, 2320835), (10010, 2067653), (14014, 1476895), (18865, 1097122), (22295, 928334), (35035, 590758), (37730, 548561), (42197, 490490), (44590, 464167), (49049, 421970), (70070, 295379), (84394, 245245), (98098, 210985)]