1619856640

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40823}}^1$

素因数の和:40875

約数の個数: 72

約数和(自身を含む): 4005324288

約数和(自身を除く): 2385467648

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, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 40823, 81646, 163292, 204115, 326584, 408230, 653168, 816460, 1265513, 1306336, 1632920, 2531026, 2612672, 3265840, 5062052, 5225344, 6327565, 6531680, 10124104, 10450688, 12655130, 13063360, 20248208, 25310260, 26126720, 40496416, 50620520, 52253440, 80992832, 101241040, 161985664, 202482080, 323971328, 404964160, 809928320, 1619856640]

約数ペア:

[(1, 1619856640), (2, 809928320), (4, 404964160), (5, 323971328), (8, 202482080), (10, 161985664), (16, 101241040), (20, 80992832), (31, 52253440), (32, 50620520), (40, 40496416), (62, 26126720), (64, 25310260), (80, 20248208), (124, 13063360), (128, 12655130), (155, 10450688), (160, 10124104), (248, 6531680), (256, 6327565), (310, 5225344), (320, 5062052), (496, 3265840), (620, 2612672), (640, 2531026), (992, 1632920), (1240, 1306336), (1280, 1265513), (1984, 816460), (2480, 653168), (3968, 408230), (4960, 326584), (7936, 204115), (9920, 163292), (19840, 81646), (39680, 40823)]