28515060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 216

約数和(自身を含む): 104196456

約数和(自身を除く): 75681396

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 53, 60, 61, 63, 70, 84, 90, 98, 105, 106, 122, 126, 140, 147, 159, 180, 183, 196, 210, 212, 244, 245, 252, 265, 294, 305, 315, 318, 366, 371, 420, 427, 441, 477, 490, 530, 549, 588, 610, 630, 636, 732, 735, 742, 795, 854, 882, 915, 954, 980, 1060, 1098, 1113, 1220, 1260, 1281, 1470, 1484, 1590, 1708, 1764, 1830, 1855, 1908, 2135, 2196, 2205, 2226, 2385, 2562, 2597, 2745, 2940, 2989, 3180, 3233, 3339, 3660, 3710, 3843, 4270, 4410, 4452, 4770, 5124, 5194, 5490, 5565, 5978, 6405, 6466, 6678, 7420, 7686, 7791, 8540, 8820, 8967, 9540, 9699, 10388, 10980, 11130, 11956, 12810, 12932, 12985, 13356, 14945, 15372, 15582, 16165, 16695, 17934, 19215, 19398, 22260, 22631, 23373, 25620, 25970, 26901, 29097, 29890, 31164, 32330, 33390, 35868, 38430, 38796, 38955, 44835, 45262, 46746, 48495, 51940, 53802, 58194, 59780, 64660, 66780, 67893, 76860, 77910, 89670, 90524, 93492, 96990, 107604, 113155, 116388, 116865, 134505, 135786, 145485, 155820, 158417, 179340, 193980, 203679, 226310, 233730, 269010, 271572, 290970, 316834, 339465, 407358, 452620, 467460, 475251, 538020, 581940, 633668, 678930, 792085, 814716, 950502, 1018395, 1357860, 1425753, 1584170, 1901004, 2036790, 2376255, 2851506, 3168340, 4073580, 4752510, 5703012, 7128765, 9505020, 14257530, 28515060]

約数ペア:

[(1, 28515060), (2, 14257530), (3, 9505020), (4, 7128765), (5, 5703012), (6, 4752510), (7, 4073580), (9, 3168340), (10, 2851506), (12, 2376255), (14, 2036790), (15, 1901004), (18, 1584170), (20, 1425753), (21, 1357860), (28, 1018395), (30, 950502), (35, 814716), (36, 792085), (42, 678930), (45, 633668), (49, 581940), (53, 538020), (60, 475251), (61, 467460), (63, 452620), (70, 407358), (84, 339465), (90, 316834), (98, 290970), (105, 271572), (106, 269010), (122, 233730), (126, 226310), (140, 203679), (147, 193980), (159, 179340), (180, 158417), (183, 155820), (196, 145485), (210, 135786), (212, 134505), (244, 116865), (245, 116388), (252, 113155), (265, 107604), (294, 96990), (305, 93492), (315, 90524), (318, 89670), (366, 77910), (371, 76860), (420, 67893), (427, 66780), (441, 64660), (477, 59780), (490, 58194), (530, 53802), (549, 51940), (588, 48495), (610, 46746), (630, 45262), (636, 44835), (732, 38955), (735, 38796), (742, 38430), (795, 35868), (854, 33390), (882, 32330), (915, 31164), (954, 29890), (980, 29097), (1060, 26901), (1098, 25970), (1113, 25620), (1220, 23373), (1260, 22631), (1281, 22260), (1470, 19398), (1484, 19215), (1590, 17934), (1708, 16695), (1764, 16165), (1830, 15582), (1855, 15372), (1908, 14945), (2135, 13356), (2196, 12985), (2205, 12932), (2226, 12810), (2385, 11956), (2562, 11130), (2597, 10980), (2745, 10388), (2940, 9699), (2989, 9540), (3180, 8967), (3233, 8820), (3339, 8540), (3660, 7791), (3710, 7686), (3843, 7420), (4270, 6678), (4410, 6466), (4452, 6405), (4770, 5978), (5124, 5565), (5194, 5490)]