40270720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 128

約数和(自身を含む): 112363200

約数和(自身を除く): 72092480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 101, 112, 128, 140, 160, 178, 202, 224, 280, 320, 356, 404, 445, 448, 505, 560, 623, 640, 707, 712, 808, 890, 896, 1010, 1120, 1246, 1414, 1424, 1616, 1780, 2020, 2240, 2492, 2828, 2848, 3115, 3232, 3535, 3560, 4040, 4480, 4984, 5656, 5696, 6230, 6464, 7070, 7120, 8080, 8989, 9968, 11312, 11392, 12460, 12928, 14140, 14240, 16160, 17978, 19936, 22624, 24920, 28280, 28480, 32320, 35956, 39872, 44945, 45248, 49840, 56560, 56960, 62923, 64640, 71912, 79744, 89890, 90496, 99680, 113120, 125846, 143824, 179780, 199360, 226240, 251692, 287648, 314615, 359560, 398720, 452480, 503384, 575296, 629230, 719120, 1006768, 1150592, 1258460, 1438240, 2013536, 2516920, 2876480, 4027072, 5033840, 5752960, 8054144, 10067680, 20135360, 40270720]

約数ペア:

[(1, 40270720), (2, 20135360), (4, 10067680), (5, 8054144), (7, 5752960), (8, 5033840), (10, 4027072), (14, 2876480), (16, 2516920), (20, 2013536), (28, 1438240), (32, 1258460), (35, 1150592), (40, 1006768), (56, 719120), (64, 629230), (70, 575296), (80, 503384), (89, 452480), (101, 398720), (112, 359560), (128, 314615), (140, 287648), (160, 251692), (178, 226240), (202, 199360), (224, 179780), (280, 143824), (320, 125846), (356, 113120), (404, 99680), (445, 90496), (448, 89890), (505, 79744), (560, 71912), (623, 64640), (640, 62923), (707, 56960), (712, 56560), (808, 49840), (890, 45248), (896, 44945), (1010, 39872), (1120, 35956), (1246, 32320), (1414, 28480), (1424, 28280), (1616, 24920), (1780, 22624), (2020, 19936), (2240, 17978), (2492, 16160), (2828, 14240), (2848, 14140), (3115, 12928), (3232, 12460), (3535, 11392), (3560, 11312), (4040, 9968), (4480, 8989), (4984, 8080), (5656, 7120), (5696, 7070), (6230, 6464)]