161219880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19471}}^1$

素因数の和:19511

約数の個数: 96

約数和(自身を含む): 546773760

約数和(自身を除く): 385553880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2760, 4140, 8280, 19471, 38942, 58413, 77884, 97355, 116826, 155768, 175239, 194710, 233652, 292065, 350478, 389420, 447833, 467304, 584130, 700956, 778840, 876195, 895666, 1168260, 1343499, 1401912, 1752390, 1791332, 2239165, 2336520, 2686998, 3504780, 3582664, 4030497, 4478330, 5373996, 6717495, 7009560, 8060994, 8956660, 10747992, 13434990, 16121988, 17913320, 20152485, 26869980, 32243976, 40304970, 53739960, 80609940, 161219880]

約数ペア:

[(1, 161219880), (2, 80609940), (3, 53739960), (4, 40304970), (5, 32243976), (6, 26869980), (8, 20152485), (9, 17913320), (10, 16121988), (12, 13434990), (15, 10747992), (18, 8956660), (20, 8060994), (23, 7009560), (24, 6717495), (30, 5373996), (36, 4478330), (40, 4030497), (45, 3582664), (46, 3504780), (60, 2686998), (69, 2336520), (72, 2239165), (90, 1791332), (92, 1752390), (115, 1401912), (120, 1343499), (138, 1168260), (180, 895666), (184, 876195), (207, 778840), (230, 700956), (276, 584130), (345, 467304), (360, 447833), (414, 389420), (460, 350478), (552, 292065), (690, 233652), (828, 194710), (920, 175239), (1035, 155768), (1380, 116826), (1656, 97355), (2070, 77884), (2760, 58413), (4140, 38942), (8280, 19471)]