28002780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3989}}^1$

素因数の和:4020

約数の個数: 96

約数和(自身を含む): 93844800

約数和(自身を除く): 65842020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 3510, 3989, 7020, 7978, 11967, 15956, 19945, 23934, 35901, 39890, 47868, 51857, 59835, 71802, 79780, 103714, 107703, 119670, 143604, 155571, 179505, 207428, 215406, 239340, 259285, 311142, 359010, 430812, 466713, 518570, 538515, 622284, 718020, 777855, 933426, 1037140, 1077030, 1400139, 1555710, 1866852, 2154060, 2333565, 2800278, 3111420, 4667130, 5600556, 7000695, 9334260, 14001390, 28002780]

約数ペア:

[(1, 28002780), (2, 14001390), (3, 9334260), (4, 7000695), (5, 5600556), (6, 4667130), (9, 3111420), (10, 2800278), (12, 2333565), (13, 2154060), (15, 1866852), (18, 1555710), (20, 1400139), (26, 1077030), (27, 1037140), (30, 933426), (36, 777855), (39, 718020), (45, 622284), (52, 538515), (54, 518570), (60, 466713), (65, 430812), (78, 359010), (90, 311142), (108, 259285), (117, 239340), (130, 215406), (135, 207428), (156, 179505), (180, 155571), (195, 143604), (234, 119670), (260, 107703), (270, 103714), (351, 79780), (390, 71802), (468, 59835), (540, 51857), (585, 47868), (702, 39890), (780, 35901), (1170, 23934), (1404, 19945), (1755, 15956), (2340, 11967), (3510, 7978), (3989, 7020)]