28138430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 29092930

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 47, 94, 95, 115, 137, 190, 230, 235, 274, 437, 470, 685, 874, 893, 1081, 1370, 1786, 2162, 2185, 2603, 3151, 4370, 4465, 5206, 5405, 6302, 6439, 8930, 10810, 12878, 13015, 15755, 20539, 26030, 31510, 32195, 41078, 59869, 64390, 102695, 119738, 122341, 148097, 205390, 244682, 296194, 299345, 598690, 611705, 740485, 1223410, 1480970, 2813843, 5627686, 14069215, 28138430]

約数ペア:

[(1, 28138430), (2, 14069215), (5, 5627686), (10, 2813843), (19, 1480970), (23, 1223410), (38, 740485), (46, 611705), (47, 598690), (94, 299345), (95, 296194), (115, 244682), (137, 205390), (190, 148097), (230, 122341), (235, 119738), (274, 102695), (437, 64390), (470, 59869), (685, 41078), (874, 32195), (893, 31510), (1081, 26030), (1370, 20539), (1786, 15755), (2162, 13015), (2185, 12878), (2603, 10810), (3151, 8930), (4370, 6439), (4465, 6302), (5206, 5405)]