28485560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1013}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 69357600

約数和(自身を除く): 40872040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1013, 1406, 1480, 2026, 2812, 3515, 4052, 5065, 5624, 7030, 8104, 10130, 14060, 19247, 20260, 28120, 37481, 38494, 40520, 74962, 76988, 96235, 149924, 153976, 187405, 192470, 299848, 374810, 384940, 712139, 749620, 769880, 1424278, 1499240, 2848556, 3560695, 5697112, 7121390, 14242780, 28485560]

約数ペア:

[(1, 28485560), (2, 14242780), (4, 7121390), (5, 5697112), (8, 3560695), (10, 2848556), (19, 1499240), (20, 1424278), (37, 769880), (38, 749620), (40, 712139), (74, 384940), (76, 374810), (95, 299848), (148, 192470), (152, 187405), (185, 153976), (190, 149924), (296, 96235), (370, 76988), (380, 74962), (703, 40520), (740, 38494), (760, 37481), (1013, 28120), (1406, 20260), (1480, 19247), (2026, 14060), (2812, 10130), (3515, 8104), (4052, 7030), (5065, 5624)]