2017989640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:647

約数の個数: 128

約数和(自身を含む): 4931020800

約数和(自身を除く): 2913031160

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 173, 184, 230, 248, 310, 346, 409, 460, 620, 692, 713, 818, 865, 920, 1240, 1384, 1426, 1636, 1730, 2045, 2852, 3272, 3460, 3565, 3979, 4090, 5363, 5704, 6920, 7130, 7958, 8180, 9407, 10726, 12679, 14260, 15916, 16360, 18814, 19895, 21452, 25358, 26815, 28520, 31832, 37628, 39790, 42904, 47035, 50716, 53630, 63395, 70757, 75256, 79580, 94070, 101432, 107260, 123349, 126790, 141514, 159160, 188140, 214520, 246698, 253580, 283028, 291617, 353785, 376280, 493396, 507160, 566056, 583234, 616745, 707570, 986792, 1166468, 1233490, 1415140, 1458085, 1627411, 2193467, 2332936, 2466980, 2830280, 2916170, 3254822, 4386934, 4933960, 5832340, 6509644, 8137055, 8773868, 10967335, 11664680, 13019288, 16274110, 17547736, 21934670, 32548220, 43869340, 50449741, 65096440, 87738680, 100899482, 201798964, 252248705, 403597928, 504497410, 1008994820, 2017989640]

約数ペア:

[(1, 2017989640), (2, 1008994820), (4, 504497410), (5, 403597928), (8, 252248705), (10, 201798964), (20, 100899482), (23, 87738680), (31, 65096440), (40, 50449741), (46, 43869340), (62, 32548220), (92, 21934670), (115, 17547736), (124, 16274110), (155, 13019288), (173, 11664680), (184, 10967335), (230, 8773868), (248, 8137055), (310, 6509644), (346, 5832340), (409, 4933960), (460, 4386934), (620, 3254822), (692, 2916170), (713, 2830280), (818, 2466980), (865, 2332936), (920, 2193467), (1240, 1627411), (1384, 1458085), (1426, 1415140), (1636, 1233490), (1730, 1166468), (2045, 986792), (2852, 707570), (3272, 616745), (3460, 583234), (3565, 566056), (3979, 507160), (4090, 493396), (5363, 376280), (5704, 353785), (6920, 291617), (7130, 283028), (7958, 253580), (8180, 246698), (9407, 214520), (10726, 188140), (12679, 159160), (14260, 141514), (15916, 126790), (16360, 123349), (18814, 107260), (19895, 101432), (21452, 94070), (25358, 79580), (26815, 75256), (28520, 70757), (31832, 63395), (37628, 53630), (39790, 50716), (42904, 47035)]