20971860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 75866112

約数和(自身を除く): 54894252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 52, 60, 65, 69, 70, 78, 84, 91, 92, 105, 115, 130, 138, 140, 156, 161, 167, 182, 195, 210, 230, 260, 273, 276, 299, 322, 334, 345, 364, 390, 420, 455, 460, 483, 501, 546, 598, 644, 668, 690, 780, 805, 835, 897, 910, 966, 1002, 1092, 1169, 1196, 1365, 1380, 1495, 1610, 1670, 1794, 1820, 1932, 2004, 2093, 2171, 2338, 2415, 2505, 2730, 2990, 3220, 3340, 3507, 3588, 3841, 4186, 4342, 4485, 4676, 4830, 5010, 5460, 5845, 5980, 6279, 6513, 7014, 7682, 8372, 8684, 8970, 9660, 10020, 10465, 10855, 11523, 11690, 12558, 13026, 14028, 15197, 15364, 17535, 17940, 19205, 20930, 21710, 23046, 23380, 25116, 26052, 26887, 30394, 31395, 32565, 35070, 38410, 41860, 43420, 45591, 46092, 49933, 53774, 57615, 60788, 62790, 65130, 70140, 75985, 76820, 80661, 91182, 99866, 107548, 115230, 125580, 130260, 134435, 149799, 151970, 161322, 182364, 199732, 227955, 230460, 249665, 268870, 299598, 303940, 322644, 349531, 403305, 455910, 499330, 537740, 599196, 699062, 748995, 806610, 911820, 998660, 1048593, 1398124, 1497990, 1613220, 1747655, 2097186, 2995980, 3495310, 4194372, 5242965, 6990620, 10485930, 20971860]

約数ペア:

[(1, 20971860), (2, 10485930), (3, 6990620), (4, 5242965), (5, 4194372), (6, 3495310), (7, 2995980), (10, 2097186), (12, 1747655), (13, 1613220), (14, 1497990), (15, 1398124), (20, 1048593), (21, 998660), (23, 911820), (26, 806610), (28, 748995), (30, 699062), (35, 599196), (39, 537740), (42, 499330), (46, 455910), (52, 403305), (60, 349531), (65, 322644), (69, 303940), (70, 299598), (78, 268870), (84, 249665), (91, 230460), (92, 227955), (105, 199732), (115, 182364), (130, 161322), (138, 151970), (140, 149799), (156, 134435), (161, 130260), (167, 125580), (182, 115230), (195, 107548), (210, 99866), (230, 91182), (260, 80661), (273, 76820), (276, 75985), (299, 70140), (322, 65130), (334, 62790), (345, 60788), (364, 57615), (390, 53774), (420, 49933), (455, 46092), (460, 45591), (483, 43420), (501, 41860), (546, 38410), (598, 35070), (644, 32565), (668, 31395), (690, 30394), (780, 26887), (805, 26052), (835, 25116), (897, 23380), (910, 23046), (966, 21710), (1002, 20930), (1092, 19205), (1169, 17940), (1196, 17535), (1365, 15364), (1380, 15197), (1495, 14028), (1610, 13026), (1670, 12558), (1794, 11690), (1820, 11523), (1932, 10855), (2004, 10465), (2093, 10020), (2171, 9660), (2338, 8970), (2415, 8684), (2505, 8372), (2730, 7682), (2990, 7014), (3220, 6513), (3340, 6279), (3507, 5980), (3588, 5845), (3841, 5460), (4186, 5010), (4342, 4830), (4485, 4676)]