399990420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12143}}^1$

素因数の和:12222

約数の個数: 96

約数和(自身を含む): 1264919040

約数和(自身を除く): 864928620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 90, 108, 122, 135, 180, 183, 244, 270, 305, 366, 540, 549, 610, 732, 915, 1098, 1220, 1647, 1830, 2196, 2745, 3294, 3660, 5490, 6588, 8235, 10980, 12143, 16470, 24286, 32940, 36429, 48572, 60715, 72858, 109287, 121430, 145716, 182145, 218574, 242860, 327861, 364290, 437148, 546435, 655722, 728580, 740723, 1092870, 1311444, 1481446, 1639305, 2185740, 2222169, 2962892, 3278610, 3703615, 4444338, 6557220, 6666507, 7407230, 8888676, 11110845, 13333014, 14814460, 19999521, 22221690, 26666028, 33332535, 39999042, 44443380, 66665070, 79998084, 99997605, 133330140, 199995210, 399990420]

約数ペア:

[(1, 399990420), (2, 199995210), (3, 133330140), (4, 99997605), (5, 79998084), (6, 66665070), (9, 44443380), (10, 39999042), (12, 33332535), (15, 26666028), (18, 22221690), (20, 19999521), (27, 14814460), (30, 13333014), (36, 11110845), (45, 8888676), (54, 7407230), (60, 6666507), (61, 6557220), (90, 4444338), (108, 3703615), (122, 3278610), (135, 2962892), (180, 2222169), (183, 2185740), (244, 1639305), (270, 1481446), (305, 1311444), (366, 1092870), (540, 740723), (549, 728580), (610, 655722), (732, 546435), (915, 437148), (1098, 364290), (1220, 327861), (1647, 242860), (1830, 218574), (2196, 182145), (2745, 145716), (3294, 121430), (3660, 109287), (5490, 72858), (6588, 60715), (8235, 48572), (10980, 36429), (12143, 32940), (16470, 24286)]