89121280

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1177

約数の個数: 80

約数和(自身を含む): 220771584

約数和(自身を除く): 131650304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1123, 1240, 1280, 1984, 2246, 2480, 2560, 3968, 4492, 4960, 5615, 7936, 8984, 9920, 11230, 15872, 17968, 19840, 22460, 34813, 35936, 39680, 44920, 69626, 71872, 79360, 89840, 139252, 143744, 174065, 179680, 278504, 287488, 348130, 359360, 557008, 574976, 696260, 718720, 1114016, 1392520, 1437440, 2228032, 2785040, 2874880, 4456064, 5570080, 8912128, 11140160, 17824256, 22280320, 44560640, 89121280]

約数ペア:

[(1, 89121280), (2, 44560640), (4, 22280320), (5, 17824256), (8, 11140160), (10, 8912128), (16, 5570080), (20, 4456064), (31, 2874880), (32, 2785040), (40, 2228032), (62, 1437440), (64, 1392520), (80, 1114016), (124, 718720), (128, 696260), (155, 574976), (160, 557008), (248, 359360), (256, 348130), (310, 287488), (320, 278504), (496, 179680), (512, 174065), (620, 143744), (640, 139252), (992, 89840), (1123, 79360), (1240, 71872), (1280, 69626), (1984, 44920), (2246, 39680), (2480, 35936), (2560, 34813), (3968, 22460), (4492, 19840), (4960, 17968), (5615, 15872), (7936, 11230), (8984, 9920)]