128244780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30977}}^1$

素因数の和:31015

約数の個数: 72

約数和(自身を含む): 405935712

約数和(自身を除く): 277690932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 30977, 61954, 92931, 123908, 154885, 185862, 278793, 309770, 371724, 464655, 557586, 619540, 712471, 929310, 1115172, 1393965, 1424942, 1858620, 2137413, 2787930, 2849884, 3562355, 4274826, 5575860, 6412239, 7124710, 8549652, 10687065, 12824478, 14249420, 21374130, 25648956, 32061195, 42748260, 64122390, 128244780]

約数ペア:

[(1, 128244780), (2, 64122390), (3, 42748260), (4, 32061195), (5, 25648956), (6, 21374130), (9, 14249420), (10, 12824478), (12, 10687065), (15, 8549652), (18, 7124710), (20, 6412239), (23, 5575860), (30, 4274826), (36, 3562355), (45, 2849884), (46, 2787930), (60, 2137413), (69, 1858620), (90, 1424942), (92, 1393965), (115, 1115172), (138, 929310), (180, 712471), (207, 619540), (230, 557586), (276, 464655), (345, 371724), (414, 309770), (460, 278793), (690, 185862), (828, 154885), (1035, 123908), (1380, 92931), (2070, 61954), (4140, 30977)]